{"title":"McIntosh Multichannel Amplifiers","description":"\u003cp\u003eExplore current McIntosh multichannel power amplifiers for home theater, distributed audio, and custom-install systems. Compare channel count, rated power, amplifier architecture, rack and ventilation requirements, and whether channels will be dedicated to front speakers, surrounds, height channels, or multiple zones.\u003c\/p\u003e\u003cp\u003eStart with \u003ca href=\"\/collections\/mcintosh-home-theater\"\u003eMcIntosh home theater\u003c\/a\u003e when planning the complete cinema system, then pair amplification with the appropriate \u003ca href=\"\/collections\/mcintosh-av-processors\"\u003eMcIntosh A\/V processor\u003c\/a\u003e or receiver. Audio Exchange can help map amplifier channels to the speaker layout and account for room scale, impedance, installation, and future expansion.\u003c\/p\u003e","products":[{"product_id":"mc303-3-channel-solid-state-amplifier","title":"McIntosh MC303 3-Channel Solid State Amplifier","description":"\u003ch2\u003eUnleash Unmatched Power with the McIntosh MC303 Multi-Channel Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcIntosh MC303\u003c\/strong\u003e is our most powerful multi-channel amplifier, delivering a robust \u003cstrong\u003e300 Watts into each of its 3 channels\u003c\/strong\u003e. Whether you’re building a high-performance home theater or a state-of-the-art audio system, the MC303 offers unparalleled power, precision, and flexibility, ensuring an extraordinary listening experience.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e300 Watts per channel into 2, 4, or 8 Ohms\u003c\/li\u003e\n\u003cli\u003ePatented Autoformer™ technology for consistent power output\u003c\/li\u003e\n\u003cli\u003ePower Guard® to prevent clipping and protect your speakers\u003c\/li\u003e\n\u003cli\u003eSentry Monitor™ fuse-less short-circuit protection\u003c\/li\u003e\n\u003cli\u003eBalanced and unbalanced input options for flexible connectivity\u003c\/li\u003e\n\u003cli\u003eTriple bank blue watt meters for real-time power monitoring\u003c\/li\u003e\n\u003cli\u003eStainless steel chassis and classic McIntosh black glass front panel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDesigned for Ultimate Home Theater Performance\u003c\/h2\u003e\n\u003cp\u003eThe MC303 is engineered to drive the front left, right, and center channels of your home theater system, delivering the majority of a movie’s soundtrack with breathtaking clarity and impact. Pair it with McIntosh’s MC312 or MC152 amplifiers for the surround channels, and fully immerse yourself in your movie collection like never before. For audiophiles, the MC303 can also be used in tri-amping configurations on compatible speakers, such as the McIntosh XRT1.1K or XRT2.1K, bringing your music to life with unmatched detail and power.\u003c\/p\u003e\n\u003ch2\u003eAdvanced Protection and Versatile Connectivity\u003c\/h2\u003e\n\u003cp\u003eThe MC303 is equipped with McIntosh’s signature technologies to ensure reliable performance. \u003cstrong\u003ePower Guard®\u003c\/strong\u003e prevents over-driving of the amplifier, protecting your speakers from harsh clipping. The \u003cstrong\u003eSentry Monitor™\u003c\/strong\u003e circuit provides fuse-less short-circuit protection, automatically disengaging the output stage when current exceeds safe levels and resetting when conditions normalize. With inputs for both balanced and unbalanced cables, the MC303 offers the flexibility needed to integrate seamlessly into any high-end audio or home theater system.\u003c\/p\u003e\n\u003ch2\u003eClassic McIntosh Aesthetics\u003c\/h2\u003e\n\u003cp\u003eTrue to McIntosh’s design heritage, the MC303 features a polished stainless steel chassis, a classic black glass front panel, and custom machined aluminum handles. The triple bank of blue watt meters provides a striking visual element, allowing you to monitor power output in real-time. For theater use, the meters can be switched off to avoid conflicts with your screen, ensuring that nothing distracts from your viewing experience.\u003c\/p\u003e\n\u003ch3\u003eWhat Experts Are Saying:\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003e\"There was a gripping \"rightness\" about the musical performance that trumped any rational analysis.\" - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/MC303-Stereophile-509.pdf?rev=1efa006dc1b84a8ab39c667cf1e28adb\u0026amp;revision=1efa006d-c1b8-4a8a-b39c-667cf1e28adb\" rel=\"noopener noreferrer\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/MC303-Stereophile-509.pdf?rev=1efa006dc1b84a8ab39c667cf1e28adb\u0026amp;revision=1efa006d-c1b8-4a8a-b39c-667cf1e28adb\" target=\"_blank\"\u003eStereophile Magazine\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eYour Home Theater Experts in Richmond, Virginia\u003c\/h2\u003e\n\u003cp\u003eAt \u003cstrong\u003eAudio Exchange\u003c\/strong\u003e in Richmond, Virginia, we are proud to be authorized dealers of McIntosh products, including the MC303 multi-channel amplifier. Visit our showroom to experience the power and precision of McIntosh for yourself. Our team of experts is ready to help you design the ultimate home theater or audio system. \u003ca title=\"Home Theater Installation Services\" href=\"\/pages\/services\" data-mce-href=\"\/pages\/services\"\u003eLearn more about our home theater installation services\u003c\/a\u003e today.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eElectronic Specifications\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eFTC Power Output Rating\u003c\/td\u003e\n    \u003ctd\u003e300 W\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003ePower Output per Channel\u003c\/td\u003e\n    \u003ctd\u003e300 W into 2, 4 or 8 ohms\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eNumber of Channels\u003c\/td\u003e\n    \u003ctd\u003e3\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eTotal Harmonic Distortion\u003c\/td\u003e\n    \u003ctd\u003e0.005%\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eS\/N below rated output\u003c\/td\u003e\n    \u003ctd\u003e112dB\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eDynamic Headroom\u003c\/td\u003e\n    \u003ctd\u003e1.8dB\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eDamping Factor\u003c\/td\u003e\n    \u003ctd\u003e\u0026gt;40\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eRated Power Band\u003c\/td\u003e\n    \u003ctd\u003e20Hz to 20kHz\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eFrequency Response\u003c\/td\u003e\n    \u003ctd\u003e+0, -0.25dB from 20Hz to 20kHz\u003cbr\u003e+0, -3dB from 10Hz to 100kHz\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eControl\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eRemote Power Control\u003c\/td\u003e\n    \u003ctd\u003eYes\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eMulti-Channel DB25 Cable\u003c\/td\u003e\n    \u003ctd\u003eNo\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eGeneral Specifications\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eCircuit Configuration\u003c\/td\u003e\n    \u003ctd\u003ePush-Pull Complementary Autoformers\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eCircuit Design\u003c\/td\u003e\n    \u003ctd\u003eSolid State\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eMono Bridge\u003c\/td\u003e\n    \u003ctd\u003eNo\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eMono Parallel\u003c\/td\u003e\n    \u003ctd\u003eNo\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eOutput Type\u003c\/td\u003e\n    \u003ctd\u003eAutoformer™\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eMeters\u003c\/td\u003e\n    \u003ctd\u003eYes\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eMeter Light Switch\u003c\/td\u003e\n    \u003ctd\u003eYes\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eBalanced Input\u003c\/td\u003e\n    \u003ctd\u003eYes\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eFront Panel\u003c\/td\u003e\n    \u003ctd\u003eGlass with handles\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eIllumination\u003c\/td\u003e\n    \u003ctd\u003eLED Fiber Optic\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eChassis Style\u003c\/td\u003e\n    \u003ctd\u003eInverted\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eSpeaker Binding Post Type\u003c\/td\u003e\n    \u003ctd\u003eYes\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eWeights \u0026amp; Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eUnit Dimensions (W x H x D)\u003c\/td\u003e\n    \u003ctd\u003e17-3\/4\" (45.09cm) x 12-3\/8\" (31.43cm) (including feet) x 22\" (55.88cm) (including front panel and cables)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eUnit Weight\u003c\/td\u003e\n    \u003ctd\u003e155 lbs (70.3 kg)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eShipping Weight\u003c\/td\u003e\n    \u003ctd\u003e180 lbs (81.6 kg)\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n                                                                        ","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43204676157487,"sku":"","price":14000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0235\/1375\/9791\/files\/mc303-3-channel-solid-state-amplifier-853375.jpg?v=1724957055"},{"product_id":"mc255-5-channel-solid-state-amplifier","title":"McIntosh MC255 5-Channel Solid State Amplifier","description":"\u003ch2\u003ePower Your Home Theater with the McIntosh MC255 5-Channel Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcIntosh MC255\u003c\/strong\u003e 5-Channel Solid State Amplifier is the ultimate solution for home theater enthusiasts who demand nothing but the best in audio performance. With a remarkable \u003cstrong\u003e250 Watts per channel for 3 channels\u003c\/strong\u003e and \u003cstrong\u003e200 Watts per channel for 5 channels\u003c\/strong\u003e, the MC255 ensures your home theater system delivers powerful, immersive sound, whether you're watching movies, playing video games, or enjoying your favorite music.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e250 Watts x 3 Channels; 200 Watts x 5 Channels\u003c\/li\u003e\n\u003cli\u003eTripleView™ Power Output Meter for real-time monitoring\u003c\/li\u003e\n\u003cli\u003eDynamic Power Manager® (DPM) for consistent power delivery\u003c\/li\u003e\n\u003cli\u003eOver 100% increase in dynamic headroom for enhanced performance\u003c\/li\u003e\n\u003cli\u003ePower Guard® and Sentry Monitor™ for advanced speaker protection\u003c\/li\u003e\n\u003cli\u003eMonogrammed Heatsinks™ for cool, quiet operation\u003c\/li\u003e\n\u003cli\u003eGold-plated binding posts to prevent corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eUnmatched Home Theater Performance\u003c\/h2\u003e\n\u003cp\u003eThe MC255 is designed to deliver an unforgettable cinema experience in your home. With its increased filter capacity and dynamic headroom, the MC255 provides the extra power needed to handle the most demanding soundtracks. Whether you're using the amplifier for a full 5-channel home theater setup or focusing on the front left, right, and center channels, the MC255 ensures every note, dialogue, and sound effect is reproduced with stunning clarity and impact.\u003c\/p\u003e\n\u003ch2\u003eInnovative TripleView™ Power Output Meter\u003c\/h2\u003e\n\u003cp\u003eThe MC255 introduces the revolutionary \u003cstrong\u003eTripleView™ Power Output Meter\u003c\/strong\u003e, a unique feature that displays the power output of the amplifier’s three front channels in real-time. This 15” wide meter brings together three traditional McIntosh mechanical meters into one, providing an easy-to-read and visually striking display. The meters’ signature blue lighting adds a touch of elegance to your setup, but can be turned off to avoid any distractions during your viewing experience.\u003c\/p\u003e\n\u003ch2\u003eAdvanced Cooling and Quiet Operation\u003c\/h2\u003e\n\u003cp\u003eUnlike many other amplifiers, the MC255 operates cool and quiet thanks to four \u003cstrong\u003eMcIntosh Monogrammed Heatsinks™\u003c\/strong\u003e connected to advanced high-current output transistors. These features eliminate the need for noisy cooling fans, ensuring that nothing interrupts your movie’s soundtrack. The toroidal isolation power transformer also minimizes noise, while the gold-plated binding posts ensure a pristine signal is sent to your speakers.\u003c\/p\u003e\n\u003ch2\u003eVersatile Installation and Connectivity\u003c\/h2\u003e\n\u003cp\u003eThe MC255 offers versatile installation options, making it ideal for a wide range of home theater configurations. It can power a conventional 5-channel setup or be paired with additional McIntosh amplifiers for expanded systems featuring Dolby® Atmos, DTS:X™, and Auro-3D® object-based 3D audio formats. The MC255 can also be configured for dual-zone use, delivering 250 Watts to one zone and 200 Watts to another, offering flexibility and powerful performance throughout your home.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the McIntosh MC255?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcIntosh MC255\u003c\/strong\u003e stands out not just for its power and performance, but also for its innovative features and classic McIntosh design. Whether you're upgrading an existing home theater system or building one from scratch, the MC255 provides the power, precision, and reliability needed to create a truly immersive audio experience. Its combination of advanced technologies, like Dynamic Power Manager® and Power Guard®, with timeless aesthetics ensures that the MC255 will be the centerpiece of any high-end home theater setup.\u003c\/p\u003e\n\u003ch2\u003eYour Home Theater Experts in Richmond, Virginia\u003c\/h2\u003e\n\u003cp\u003eAt \u003cstrong\u003eAudio Exchange\u003c\/strong\u003e in Richmond, Virginia, we are proud to offer the McIntosh MC255 5-Channel Amplifier. Visit our showroom to experience the unparalleled power and precision of McIntosh products. Our team of experts is here to help you create the ultimate home theater experience, tailored to your specific needs. \u003ca title=\"Home Theater Installation Services\" href=\"\/pages\/services\"\u003eLearn more about our home theater installation services\u003c\/a\u003e today.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectronic Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFTC Power Output Rating\u003c\/td\u003e\n\u003ctd\u003e250 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Output per Channel\u003c\/td\u003e\n\u003ctd\u003e3 Front Channels only: 250 W into 4 or 8 ohms\u003cbr\u003eAll 5 Channels: 200 W into 4 or 8 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e5\u003cbr\u003e\u003cem\u003e(can also be used as a 2-zone amplifier with 3 channels in zone A and 2 channels in zone B)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion\u003c\/td\u003e\n\u003ctd\u003e0.005%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\/N below rated output\u003c\/td\u003e\n\u003ctd\u003e108dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Headroom\u003c\/td\u003e\n\u003ctd\u003e3.6dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping Factor\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;70 @ 4 ohms\u003cbr\u003e\u0026gt;140 @ 8 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Power Band\u003c\/td\u003e\n\u003ctd\u003e20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e+0, -0.25dB from 20Hz to 20kHz\u003cbr\u003e+0, -3dB from 10Hz to 100kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemote Power Control\u003c\/td\u003e\n\u003ctd\u003eYes, 5 or 3 + 2 Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMulti-Channel DB25 Cable\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Binding Post Type\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGeneral Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit Configuration\u003c\/td\u003e\n\u003ctd\u003ePush-Pull Complementary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit Design\u003c\/td\u003e\n\u003ctd\u003eSolid State\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMono Bridge\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMono Parallel\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDirect Coupled with Dynamic Power Manager®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeters\u003c\/td\u003e\n\u003ctd\u003eTripleView™ Power Output Meter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeter Light Switch\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalanced Input\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront Panel\u003c\/td\u003e\n\u003ctd\u003eGlass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIllumination\u003c\/td\u003e\n\u003ctd\u003eDirect LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Style\u003c\/td\u003e\n\u003ctd\u003eInverted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeights \u0026amp; Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Dimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e17-1\/2\" (44.5cm) x 9-7\/16\" (23.9cm) (including feet) x 21\" (53.3cm) (including front panel and cables)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Weight\u003c\/td\u003e\n\u003ctd\u003e89.5 lbs (40.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e122.5 lbs (55.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43204798119983,"sku":"","price":10000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0235\/1375\/9791\/files\/mc255-5-channel-solid-state-amplifier-943402.jpg?v=1724957056"},{"product_id":"mc257-7-channel-solid-state-amplifier","title":"McIntosh MC257 7-Channel Solid State Amplifier","description":"\u003ch2\u003eTransform Your Home Theater with the McIntosh MC257 7-Channel Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcIntosh MC257\u003c\/strong\u003e 7-Channel Solid State Amplifier delivers the power and performance that your home theater deserves. With \u003cstrong\u003e250 Watts per channel for 3 channels\u003c\/strong\u003e and \u003cstrong\u003e200 Watts per channel for 7 channels\u003c\/strong\u003e, the MC257 ensures your movies, music, and games are brought to life with the unparalleled sound quality and clarity that only McIntosh can provide.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e250 Watts x 3 Channels; 200 Watts x 7 Channels\u003c\/li\u003e\n\u003cli\u003eInnovative TripleView™ Power Output Meter\u003c\/li\u003e\n\u003cli\u003e94% increase in dynamic headroom for enhanced performance\u003c\/li\u003e\n\u003cli\u003eDynamic Power Manager® (DPM) for consistent power delivery\u003c\/li\u003e\n\u003cli\u003ePower Guard® and Sentry Monitor™ for advanced speaker protection\u003c\/li\u003e\n\u003cli\u003eMonogrammed Heatsinks™ for cool, quiet operation\u003c\/li\u003e\n\u003cli\u003eGold-plated binding posts to prevent corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eExperience Immersive Sound with TripleView™ Technology\u003c\/h2\u003e\n\u003cp\u003eThe MC257 is highlighted by our eye-catching \u003cstrong\u003eTripleView™ Power Output Meter\u003c\/strong\u003e, which independently displays the real-time power output of the amplifier’s three front channels. This 15” wide meter combines three traditional McIntosh meters into a single, streamlined enclosure, delivering the same high performance and enticing motion that McIntosh meters are known for. The TripleView meter’s captivating blue glow can be turned off to ensure it doesn’t compete with your TV or movie screen, allowing you to fully immerse yourself in the action.\u003c\/p\u003e\n\u003ch2\u003ePair with the McIntosh MX180 A\/V Processor\u003c\/h2\u003e\n\u003cp\u003eFor the ultimate home theater setup, pair the MC257 with the \u003ca title=\"McIntosh MX180 A\/V Processor\" href=\"https:\/\/audio-exchange.com\/products\/mx180-a-v-processor\"\u003eMcIntosh MX180 A\/V Processor\u003c\/a\u003e. This combination \"\u003cem\u003echecked all the performance-related boxes when it came to signal integrity and immersion. Also, clarity and dynamics were off the charts... It had an amazing surround bubble that put me in the center of the action. This soundscape featured pinpoint imaging of all the discrete effects. The overall clarity, dynamic punch, and low distortion of the sound were above reproach.\u003c\/em\u003e\" – \u003cstrong\u003eSECRETS of Home Theater and High Fidelity\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003ePowerful Performance with Enhanced Dynamic Headroom\u003c\/h2\u003e\n\u003cp\u003eThe MC257 has been upgraded to deliver even more power and performance. When using the front left, center, and right channels, power output has been increased by 25%, delivering \u003cstrong\u003e250 Watts per channel\u003c\/strong\u003e. When all 7 channels are in use, each receives a robust \u003cstrong\u003e200 Watts per channel\u003c\/strong\u003e. Thanks to an increased filter capacity, the MC257 boasts a \u003cstrong\u003e94% increase in dynamic headroom\u003c\/strong\u003e, allowing it to handle even the most demanding soundtracks with ease. This increased headroom, along with improved low-frequency performance, ensures that your home theater delivers the impactful, immersive sound you crave.\u003c\/p\u003e\n\u003ch2\u003eAdvanced Cooling and Quiet Operation\u003c\/h2\u003e\n\u003cp\u003eThe MC257 operates cool and quiet, thanks to five \u003cstrong\u003eMcIntosh Monogrammed Heatsinks™\u003c\/strong\u003e connected to advanced high-current output transistors. These features eliminate the need for noisy cooling fans, ensuring that nothing interferes with your movie’s soundtrack. A specially wound toroidal isolation power transformer further minimizes noise, while gold-plated binding posts ensure a pristine signal is sent to your speakers.\u003c\/p\u003e\n\u003ch2\u003eFlexible Configuration Options\u003c\/h2\u003e\n\u003cp\u003eThe MC257 is incredibly versatile and can be used in various home theater configurations. It can power a full 7-channel setup on its own, or it can be paired with additional McIntosh amplifiers, such as the MI128 or MI254, to power systems with more than 7 channels. Alternatively, the MC257 can be used in a 5-channel setup, with the remaining 2 channels available to power a second audio zone in your home.\u003c\/p\u003e\n\u003ch2\u003eClassic McIntosh Design\u003c\/h2\u003e\n\u003cp\u003eAs with all McIntosh products, the MC257 features the classic McIntosh design, including a polished stainless steel chassis, black glass front panel, TripleView meter, illuminated logo, control knobs, and aluminum end caps. This amplifier is as visually stunning as it is powerful, making it the perfect centerpiece for any high-end home theater.\u003c\/p\u003e\n\u003ch2\u003eYour Home Theater Experts in Richmond, Virginia\u003c\/h2\u003e\n\u003cp\u003eAt \u003cstrong\u003eAudio Exchange\u003c\/strong\u003e in Richmond, Virginia, we are proud to offer the McIntosh MC257 7-Channel Amplifier. Visit our showroom to experience the unparalleled power and precision of McIntosh products. Our team of experts is here to help you create the ultimate home theater experience, tailored to your specific needs. \u003ca href=\"\/pages\/services\" title=\"Home Theater Installation Services\"\u003eLearn more about our home theater installation services\u003c\/a\u003e today.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 99.9288%; height: 901.899px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003e\u003cstrong\u003eElectronic Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eFTC Power Output Rating\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e250 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003ePower Output per Channel\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e3 Front Channels only: 250 W into 4 or 8 ohms\u003cbr\u003eAll 7 Channels: 200 W into 4 or 8 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.8194px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 58.8194px;\"\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 58.8194px;\"\u003e7\u003cbr\u003e\u003cem\u003e(can also be used as a 2-zone amplifier with 5 channels in zone A and 2 channels in zone B)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eTotal Harmonic Distortion\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e0.005%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eS\/N below rated output\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e108dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eDynamic Headroom\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003e3.3dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eDamping Factor\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e\u0026gt;70 @ 4 ohms\u003cbr\u003e\u0026gt;140 @ 8 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eRated Power Band\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003e20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e+0, -0.25dB from 20Hz to 20kHz\u003cbr\u003e+0, -3dB from 10Hz to 100kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003e\u003cstrong\u003eControl\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eRemote Power Control\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003eYes, 7 or 5 + 2 Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eMulti-Channel DB25 Cable\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003e\u003cstrong\u003eGeneral Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eCircuit Configuration\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003ePush-Pull Complementary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eCircuit Design\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003eSolid State\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eMono Bridge\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eMono Parallel\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eOutput Type\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003eDirect Coupled with Dynamic Power Manager®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eMeters\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eMeter Light Switch\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eBalanced Input\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eFront Panel\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003eGlass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eIllumination\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003eDirect LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eChassis Style\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003ePolished stainless steel \u0026amp; black painted steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eSpeaker Binding Post Type\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003e\u003cstrong\u003eWeights \u0026amp; Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.213px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 39.213px;\"\u003eUnit Dimensions (W x H x D)\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 39.213px;\"\u003e17-1\/2\" (44.5cm) x 9-7\/16\" (23.9cm) (including feet) x 21\" (53.3cm) (including front panel and cables)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eUnit Weight\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003e95 lbs (43 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6065px;\"\u003e\n\u003ctd style=\"width: 25.3973%; height: 19.6065px;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"width: 72.3168%; height: 19.6065px;\"\u003e128 lbs (58 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43204896358447,"sku":"","price":13000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0235\/1375\/9791\/files\/mc257-7-channel-solid-state-amplifier-292335.webp?v=1726162735"},{"product_id":"mcintosh-mi347-7-channel-amplifier","title":"McIntosh MI347 7-Channel Digital Power Amplifier","description":"\u003ch2\u003eMcIntosh MI347 7-Channel Home Theater Power Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcIntosh MI347\u003c\/strong\u003e is a high-performance \u003cstrong\u003e7-channel power amplifier\u003c\/strong\u003e designed specifically for modern home theater systems. Its efficient closed-loop digital switching architecture delivers greater power to the three most demanding front channels while providing substantial output for four surround or height channels, all from a compact, fanless 3U chassis.\u003c\/p\u003e\n\u003cp\u003eThe front left, center and front right channels each deliver \u003cstrong\u003e250 watts into 8 ohms or 300 watts into 4 ohms\u003c\/strong\u003e. The remaining four channels deliver \u003cstrong\u003e125 watts into 8 ohms or 200 watts into 4 ohms\u003c\/strong\u003e, making the MI347 well suited to conventional 7-channel theaters or as the primary amplifier in a larger Dolby Atmos or DTS:X system.\u003c\/p\u003e\n\u003ch3\u003ePurpose-Built Power for Home Theater\u003c\/h3\u003e\n\u003cp\u003eMovie soundtracks place the greatest demands on the front soundstage, where dialogue, music and the most powerful effects are concentrated. McIntosh designed the MI347 around that reality. Its three higher-powered front channels provide additional dynamic headroom for the left, center and right speakers, while the four surround channels efficiently power surround, rear or overhead speakers.\u003c\/p\u003e\n\u003cp\u003eThis channel layout makes the MI347 a natural partner for the \u003ca href=\"\/products\/mx200-a-v-processor\"\u003eMcIntosh MX200 A\/V Processor\u003c\/a\u003e. Systems requiring more than seven amplified channels can supplement it with an additional multichannel amplifier for height, surround or secondary-zone speakers.\u003c\/p\u003e\n\u003ch3\u003eClosed-Loop Class D Amplification\u003c\/h3\u003e\n\u003cp\u003eThe MI347 uses sophisticated closed-loop digital switching amplifier circuits paired with robust power supplies. This highly efficient Class D design produces substantial output without requiring cooling fans, helping preserve a quiet equipment room while reducing the heat and space demands associated with many traditional multichannel amplifiers.\u003c\/p\u003e\n\u003cp\u003eVentilation openings across the top and sides support passive heat dissipation. The understated exterior is intended to integrate neatly into a dedicated A\/V rack, yet its black glass front panel, illuminated McIntosh logo and silver trim retain the brand’s familiar visual identity.\u003c\/p\u003e\n\u003ch3\u003eRack-Friendly Installation\u003c\/h3\u003e\n\u003cp\u003eAt only 3U high, the MI347 is built for custom-installed home theaters and equipment racks. Removable rack-mounting brackets are included, allowing it to be installed in a standard 19-inch rack or placed on a conventional equipment shelf.\u003c\/p\u003e\n\u003cp\u003eThe amplifier measures 17-1\/2 inches wide without the rack ears, 6-1\/16 inches high including its feet and 21 inches deep including the front panel and connected cables. It weighs 32.5 pounds, making it considerably easier to place and service than many large traditional multichannel amplifiers.\u003c\/p\u003e\n\u003ch3\u003eFlexible Balanced and Unbalanced Connections\u003c\/h3\u003e\n\u003cp\u003eEach of the seven channels includes both a balanced XLR input and an unbalanced RCA input, allowing the MI347 to work with a wide range of surround processors and system configurations. Standard five-way binding posts provide secure speaker connections, while McIntosh Power Control can coordinate startup and shutdown with compatible components.\u003c\/p\u003e\n\u003cp\u003eMulti-color front-panel LED indicators provide a clear view of each channel’s operating status without the space required for traditional power meters.\u003c\/p\u003e\n\u003ch3\u003eProtection and Automatic Operation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Guard®:\u003c\/strong\u003e Monitors the audio signal and helps prevent amplifier clipping from damaging connected loudspeakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSentry Monitor™:\u003c\/strong\u003e Protects the output stages from unsafe current conditions and automatically restores operation when normal conditions return.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal sensing:\u003c\/strong\u003e Can automatically turn the amplifier on when an input signal is detected and shut it down after an extended period without a signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Control:\u003c\/strong\u003e Allows compatible McIntosh components to power on and off together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFanless cooling:\u003c\/strong\u003e Efficient amplification and extensive ventilation eliminate the need for potentially noisy cooling fans.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMI347 vs. MC257\u003c\/h3\u003e\n\u003cp\u003eThe MI347 and the \u003ca href=\"\/products\/mc257-7-channel-solid-state-amplifier\"\u003eMcIntosh MC257 7-Channel Amplifier\u003c\/a\u003e can both power a complete seven-channel theater, but they are designed around different priorities. The MI347 uses an efficient, rack-friendly Class D design and allocates more power to the three front channels. The larger MC257 uses McIntosh’s traditional solid-state amplifier architecture and provides equal rated power across all seven channels.\u003c\/p\u003e\n\u003cp\u003eThe MI347 is particularly attractive for discreet custom installations where rack space, heat management and efficiency are important. The MC257 is better suited to systems where equal high output across every channel and traditional McIntosh amplifier styling are higher priorities.\u003c\/p\u003e\n\u003ch3\u003eMcIntosh MI347 Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAmplifier Type\u003c\/th\u003e\n\u003ctd\u003e7-channel digital home theater power amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit Configuration\u003c\/th\u003e\n\u003ctd\u003eClosed-loop digital switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront Channel Output\u003c\/th\u003e\n\u003ctd\u003e250 watts x 3 into 8 ohms; 300 watts x 3 into 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurround Channel Output\u003c\/th\u003e\n\u003ctd\u003e125 watts x 4 into 8 ohms; 200 watts x 4 into 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Channels\u003c\/th\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Harmonic Distortion\u003c\/th\u003e\n\u003ctd\u003e0.025%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSignal-to-Noise Ratio\u003c\/th\u003e\n\u003ctd\u003e100dB below rated output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDynamic Headroom\u003c\/th\u003e\n\u003ctd\u003e2.5dB at 8 ohms; 3.5dB at 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDamping Factor\u003c\/th\u003e\n\u003ctd\u003eGreater than 85 at 8 ohms; greater than 45 at 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency Response\u003c\/th\u003e\n\u003ctd\u003e+0\/-0.9dB from 20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs\u003c\/th\u003e\n\u003ctd\u003e7 balanced XLR and 7 unbalanced RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeaker Connections\u003c\/th\u003e\n\u003ctd\u003eStandard five-way binding posts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRack Height\u003c\/th\u003e\n\u003ctd\u003e3U with removable rack-mounting ears\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e17-1\/2 inches W without ears; 19 inches W with ears x 6-1\/16 inches H x 21 inches D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e32.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e47 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeat Output\u003c\/th\u003e\n\u003ctd\u003e1,500 BTU per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e3-year limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eIs the McIntosh MI347 a Class D amplifier?\u003c\/h4\u003e\n\u003cp\u003eYes. The MI347 uses closed-loop digital switching amplifier circuits, commonly described as Class D amplification, to provide high output and efficiency from a compact chassis.\u003c\/p\u003e\n\u003ch4\u003eDoes the MI347 deliver the same power from every channel?\u003c\/h4\u003e\n\u003cp\u003eNo. Its three front channels deliver 250 watts into 8 ohms or 300 watts into 4 ohms. Its four surround channels deliver 125 watts into 8 ohms or 200 watts into 4 ohms.\u003c\/p\u003e\n\u003ch4\u003eCan the MI347 power a Dolby Atmos system?\u003c\/h4\u003e\n\u003cp\u003eIt can power seven channels in a Dolby Atmos system. A configuration with more than seven amplified speakers will require an additional power amplifier for the remaining height or surround channels.\u003c\/p\u003e\n\u003ch4\u003eDoes the MI347 include a surround processor?\u003c\/h4\u003e\n\u003cp\u003eNo. The MI347 is a dedicated power amplifier and requires an A\/V processor or preamplifier, such as the McIntosh MX200, to provide decoding, source switching, volume control and room correction.\u003c\/p\u003e\n\u003ch4\u003eCan the MI347 be installed without a rack?\u003c\/h4\u003e\n\u003cp\u003eYes. The included rack ears are removable, so the amplifier can also be placed on a suitably ventilated equipment shelf.\u003c\/p\u003e\n\u003ch4\u003eDoes the MI347 use cooling fans?\u003c\/h4\u003e\n\u003cp\u003eNo. Its efficient amplifier design and extensive chassis ventilation allow it to operate without cooling fans.\u003c\/p\u003e\n\u003ch3\u003eAuthorized McIntosh Dealer Support\u003c\/h3\u003e\n\u003cp\u003eAudio Exchange is an authorized McIntosh dealer in Richmond, Virginia. Our team can help evaluate loudspeaker requirements, processor compatibility, rack ventilation, channel planning and system expansion. Browse more components in our \u003ca href=\"\/collections\/mcintosh-home-theater\"\u003eMcIntosh Home Theater collection\u003c\/a\u003e or compare additional models in the \u003ca href=\"\/collections\/mcintosh-power-amplifiers\"\u003eMcIntosh Power Amplifiers collection\u003c\/a\u003e.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":45731820044335,"sku":"MI347","price":6500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0235\/1375\/9791\/files\/mcintosh-mi347-7-channel-amplifier-front-top.jpg?v=1785678476"},{"product_id":"mcintosh-mi128-8-channel-amplifier","title":"McIntosh MI128 8-Channel Digital Power Amplifier","description":"\u003ch2\u003eMcIntosh MI128 8-Channel Digital Power Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcIntosh MI128\u003c\/strong\u003e is a compact, high-performance \u003cstrong\u003e8-channel amplifier\u003c\/strong\u003e designed for distributed audio, multi-zone music systems, home theater expansion and flexible stereo installations. Its closed-loop Class D amplification delivers \u003cstrong\u003e120 watts per channel into 8 ohms\u003c\/strong\u003e or \u003cstrong\u003e150 watts per channel into 4 ohms\u003c\/strong\u003e, giving custom-installed systems substantial output from a fanless 2U chassis.\u003c\/p\u003e\n\u003cp\u003eWith eight independently controlled channels, bussable analog and digital inputs, channel summing and installer-friendly Phoenix speaker terminals, the MI128 can power multiple rooms, additional home-theater channels or several stereo speaker pairs from one amplifier.\u003c\/p\u003e\n\u003ch3\u003eEight Channels for Multi-Zone and Home Theater Systems\u003c\/h3\u003e\n\u003cp\u003eThe MI128 is particularly well suited to whole-home and distributed audio. Eight amplifier channels can support up to four stereo zones when configured as stereo pairs, while channel summing makes it easy to distribute mono audio where stereo playback is unnecessary. Individual channel inputs and volume controls allow each output to be balanced for the connected room and loudspeaker.\u003c\/p\u003e\n\u003cp\u003eIt can also serve as a home-theater expansion amplifier for surround, height or additional zone speakers. Pair it with the \u003ca href=\"\/products\/mx200-a-v-processor\"\u003eMcIntosh MX200 A\/V Processor\u003c\/a\u003e when more channels are needed, or use it alongside the \u003ca href=\"\/products\/mc257-7-channel-solid-state-amplifier\"\u003eMcIntosh MC257 7-Channel Amplifier\u003c\/a\u003e to add power for secondary surround and overhead channels.\u003c\/p\u003e\n\u003ch3\u003e120 Watts per Channel into 8 Ohms\u003c\/h3\u003e\n\u003cp\u003eEach of the MI128’s eight channels produces 120 watts into an 8-ohm loudspeaker or 150 watts into a 4-ohm loudspeaker. The direct-coupled output stage and robust power supplies are engineered to maintain consistent performance across all channels while preserving the compact dimensions needed for equipment-rack installation.\u003c\/p\u003e\n\u003ch3\u003eEfficient Closed-Loop Class D Design\u003c\/h3\u003e\n\u003cp\u003eThe MI128 uses sophisticated closed-loop digital switching amplification. Its efficient Class D architecture produces less heat than a conventional multi-channel amplifier and does not require cooling fans, helping it remain quiet in listening rooms, media closets and centralized equipment racks.\u003c\/p\u003e\n\u003ch3\u003eBussable Analog and Digital Inputs\u003c\/h3\u003e\n\u003cp\u003eEach channel has an individual unbalanced RCA input, while BUS inputs and outputs make it possible to distribute a stereo signal across multiple channel pairs or additional amplifiers. Two digital audio inputs accept either coaxial or optical connections and can also be assigned through the amplifier’s bussing system.\u003c\/p\u003e\n\u003cp\u003eRear-panel switches provide local or BUS input selection and stereo or mono operation for each channel pair. Separate level controls allow installers to balance the output of individual channels without adding external attenuators.\u003c\/p\u003e\n\u003ch3\u003eInstaller-Friendly Connections\u003c\/h3\u003e\n\u003cp\u003eThe rear panel uses compact 2-pole Phoenix-style push-in speaker terminals, conserving space while providing secure connections for all eight channels. Twelve-volt triggering integrates the MI128 with compatible control systems and McIntosh components, while automatic signal sensing can turn the amplifier on when audio is detected and place it into standby after a period without a signal.\u003c\/p\u003e\n\u003ch3\u003eMcIntosh Speaker Protection\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Guard®:\u003c\/strong\u003e Monitors the audio signal and helps prevent harsh clipping that could damage connected loudspeakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSentry Monitor™:\u003c\/strong\u003e Protects the output stage from short circuits and unsafe current levels, then automatically resets when normal conditions return.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-color channel indicators:\u003c\/strong\u003e Eight front-panel LEDs show each channel’s operating and protection status.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompact 2U Rack-Mount Chassis\u003c\/h3\u003e\n\u003cp\u003eThe MI128 is only 2U high and includes removable rack-mounting ears. It can be installed in a standard 19-inch equipment rack or used as a conventional component with the ears removed. The black glass front panel, illuminated McIntosh logo and silver trim maintain the company’s signature appearance even in its streamlined custom-install format.\u003c\/p\u003e\n\u003ch3\u003eMI128 vs. a Traditional Home Theater Amplifier\u003c\/h3\u003e\n\u003cp\u003eThe MI128 prioritizes channel count, flexible signal distribution and rack efficiency. It is an excellent choice for distributed audio, Atmos height channels and secondary home-theater speakers. For the main channels of a demanding theater, a higher-powered amplifier such as the MC257 may provide greater output and traditional speaker connections. Many systems use the two types together: a larger amplifier for the front and primary surround channels, and the MI128 for additional channels or music zones.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/mht300-home-theater-receiver\"\u003eMcIntosh MHT300 Home Theater Receiver\u003c\/a\u003e can also be expanded with external amplification when a system requires additional channels beyond its internal amplifier section.\u003c\/p\u003e\n\u003ch3\u003eMcIntosh MI128 Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAmplifier Type\u003c\/th\u003e\n\u003ctd\u003e8-channel digital Class D power amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Output per Channel\u003c\/th\u003e\n\u003ctd\u003e120 watts into 8 ohms; 150 watts into 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Channels\u003c\/th\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Harmonic Distortion\u003c\/th\u003e\n\u003ctd\u003e0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSignal-to-Noise Ratio\u003c\/th\u003e\n\u003ctd\u003e95dB below rated output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDynamic Headroom\u003c\/th\u003e\n\u003ctd\u003e2.1dB at 8 ohms; 3.3dB at 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDamping Factor\u003c\/th\u003e\n\u003ctd\u003eGreater than 65 at 8 ohms; greater than 32 at 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated Power Band\u003c\/th\u003e\n\u003ctd\u003e20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency Response\u003c\/th\u003e\n\u003ctd\u003e+0\/-0.5dB from 20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit Configuration\u003c\/th\u003e\n\u003ctd\u003eClosed-loop digital switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Type\u003c\/th\u003e\n\u003ctd\u003eDirect coupled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAnalog Inputs\u003c\/th\u003e\n\u003ctd\u003eIndividual unbalanced RCA inputs with BUS input and output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDigital Inputs\u003c\/th\u003e\n\u003ctd\u003e2, selectable coaxial or optical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeaker Connections\u003c\/th\u003e\n\u003ctd\u003e2-pole Phoenix-style push-in terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChannel Controls\u003c\/th\u003e\n\u003ctd\u003eIndividual volume controls; local\/BUS and stereo\/mono selection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Control\u003c\/th\u003e\n\u003ctd\u003e12-volt trigger and automatic signal sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCooling\u003c\/th\u003e\n\u003ctd\u003eFanless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRack Mounting\u003c\/th\u003e\n\u003ctd\u003e2U with removable rack ears\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e17-1\/2 inches W without ears \/ 19 inches W with ears x 4-5\/16 inches H x 21 inches D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit Weight\u003c\/th\u003e\n\u003ctd\u003e22 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e38.4 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e3-year limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eHow many rooms can the McIntosh MI128 power?\u003c\/h4\u003e\n\u003cp\u003eThe eight channels can be arranged as four stereo pairs, making the MI128 suitable for powering up to four conventional stereo zones. Other combinations are possible depending on whether individual areas use stereo or summed mono playback.\u003c\/p\u003e\n\u003ch4\u003eCan the MI128 be used for Dolby Atmos speakers?\u003c\/h4\u003e\n\u003cp\u003eYes. It can power additional surround or height channels when connected to a compatible A\/V processor with unbalanced preamplifier outputs.\u003c\/p\u003e\n\u003ch4\u003eDoes the MI128 have balanced XLR inputs?\u003c\/h4\u003e\n\u003cp\u003eNo. The MI128 uses individual unbalanced RCA inputs, BUS inputs and digital coaxial or optical inputs.\u003c\/p\u003e\n\u003ch4\u003eCan the MI128 be bridged for more power?\u003c\/h4\u003e\n\u003cp\u003eNo. The amplifier does not support mono bridging or parallel channel operation. Each channel is rated independently at 120 watts into 8 ohms or 150 watts into 4 ohms.\u003c\/p\u003e\n\u003ch4\u003eDoes the MI128 require a cooling fan?\u003c\/h4\u003e\n\u003cp\u003eNo. Its efficient Class D design is fanless, helping it operate quietly in a listening room or equipment rack.\u003c\/p\u003e\n\u003ch4\u003eAre rack ears included?\u003c\/h4\u003e\n\u003cp\u003eYes. The MI128 includes removable rack-mounting ears for installation in a standard 19-inch rack.\u003c\/p\u003e\n\u003ch3\u003eAuthorized McIntosh Dealer Support\u003c\/h3\u003e\n\u003cp\u003eAudio Exchange is an authorized McIntosh dealer in Richmond, Virginia. Our team can help determine channel requirements, speaker compatibility, control-system integration and rack-planning needs for distributed audio and home-theater installations. Explore more options in our \u003ca href=\"\/collections\/mcintosh-power-amplifiers\"\u003eMcIntosh Power Amplifiers\u003c\/a\u003e and \u003ca href=\"\/collections\/mcintosh-home-theater\"\u003eMcIntosh Home Theater\u003c\/a\u003e collections.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":45731948036143,"sku":"MI128","price":4500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0235\/1375\/9791\/files\/mcintosh-mi128-8-channel-amplifier-angle.jpg?v=1785683651"},{"product_id":"mcintosh-mi254-4-channel-amplifier","title":"McIntosh MI254 4-Channel Digital Power Amplifier","description":"\u003ch2\u003eMcIntosh MI254 4-Channel Digital Power Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcIntosh MI254\u003c\/strong\u003e is a powerful and flexible \u003cstrong\u003e4-channel amplifier\u003c\/strong\u003e designed for premium home theater, distributed audio and custom-installed stereo systems. Its closed-loop Class D amplification delivers \u003cstrong\u003e250 watts per channel into 8 ohms\u003c\/strong\u003e or \u003cstrong\u003e300 watts per channel into 4 ohms\u003c\/strong\u003e, providing substantial output from a compact, fanless 2U chassis.\u003c\/p\u003e\n\u003cp\u003eWith four balanced and four unbalanced inputs, bussable stereo connections, standard 5-way speaker binding posts and removable rack ears, the MI254 can power surround or height speakers, two stereo zones, or other demanding four-channel applications while integrating cleanly into a centralized equipment rack.\u003c\/p\u003e\n\u003ch3\u003eFour High-Power Amplifier Channels\u003c\/h3\u003e\n\u003cp\u003eEach of the MI254’s four channels is rated at 250 watts into an 8-ohm loudspeaker or 300 watts into a 4-ohm loudspeaker. Unlike lower-powered multi-zone amplifiers, the MI254 is built for systems that need both flexible channel allocation and meaningful output capability.\u003c\/p\u003e\n\u003cp\u003eIn a home theater, it can drive four surround, rear or overhead channels from a compatible processor such as the \u003ca href=\"\/products\/mx200-a-v-processor\"\u003eMcIntosh MX200 A\/V Processor\u003c\/a\u003e. It can also supplement the \u003ca href=\"\/products\/mc257-7-channel-solid-state-amplifier\"\u003eMcIntosh MC257 7-Channel Amplifier\u003c\/a\u003e when a larger immersive-audio system requires additional channels.\u003c\/p\u003e\n\u003ch3\u003eEfficient Closed-Loop Class D Design\u003c\/h3\u003e\n\u003cp\u003eThe MI254 uses sophisticated closed-loop digital switching amplification paired with robust power supplies. Its efficient Class D design produces less heat than a traditional multi-channel amplifier and does not require cooling fans, helping it remain quiet in listening rooms, media closets and equipment racks.\u003c\/p\u003e\n\u003ch3\u003eBalanced, Unbalanced and Bussable Inputs\u003c\/h3\u003e\n\u003cp\u003eEach channel includes both a balanced XLR input and an unbalanced RCA input, allowing the MI254 to work with a wide range of preamplifiers, A\/V processors and distributed-audio systems. Stereo BUS inputs and outputs can distribute the same left and right signals to multiple channels or pass those signals to another compatible amplifier.\u003c\/p\u003e\n\u003cp\u003eIndividual channel inputs make it possible to feed four independent signals when the system requires discrete amplification. Twelve-volt triggering and automatic signal sensing provide additional control options for custom installations.\u003c\/p\u003e\n\u003ch3\u003eMcIntosh Watt Meters and Channel Indicators\u003c\/h3\u003e\n\u003cp\u003eTwo blue McIntosh Watt Meters display the combined output of channels 1 and 2 and channels 3 and 4. Multi-color front-panel LEDs indicate the operating status of each amplifier channel, while the black glass faceplate, illuminated green McIntosh logo and silver trim preserve the company’s familiar appearance.\u003c\/p\u003e\n\u003ch3\u003ePower Guard and Sentry Monitor Protection\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Guard®:\u003c\/strong\u003e Monitors the output signal and helps prevent harsh clipping that could damage connected loudspeakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSentry Monitor™:\u003c\/strong\u003e Protects the output stage from short circuits and unsafe current levels, then automatically resets when normal conditions return.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal sensing:\u003c\/strong\u003e Can automatically turn the amplifier on when an audio signal is detected and place it into standby after an extended period without a signal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompact 2U Rack-Mount Chassis\u003c\/h3\u003e\n\u003cp\u003eThe MI254 is only 2U high and includes removable rack-mounting ears. It can be installed in a standard 19-inch equipment rack or used as a conventional component with the ears removed. Standard 5-way speaker binding posts support common banana-plug, spade and bare-wire connections.\u003c\/p\u003e\n\u003ch3\u003eMI254 in a Home Theater System\u003c\/h3\u003e\n\u003cp\u003eThe MI254 is especially useful when a home theater processor provides more channels than the primary amplifier or receiver can power. It can add four channels for surround, rear-surround or Dolby Atmos height speakers while keeping the main channels on a larger amplifier. The \u003ca href=\"\/products\/mht300-home-theater-receiver\"\u003eMcIntosh MHT300 Home Theater Receiver\u003c\/a\u003e can also use external amplification when a system expands beyond its internal amplifier channels.\u003c\/p\u003e\n\u003ch3\u003eMI254 vs. Other Multi-Channel Amplifiers\u003c\/h3\u003e\n\u003cp\u003eThe MI254 prioritizes higher output across four channels. It is a strong fit for installations that need fewer channels with more power per speaker. An eight-channel amplifier is generally better suited to a larger number of lower-demand distributed-audio zones, while a seven-channel theater amplifier may be preferable when most of the surround system must be powered from a single chassis.\u003c\/p\u003e\n\u003ch3\u003eMcIntosh MI254 Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAmplifier Type\u003c\/th\u003e\n\u003ctd\u003e4-channel digital Class D power amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Output per Channel\u003c\/th\u003e\n\u003ctd\u003e250 watts into 8 ohms; 300 watts into 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Channels\u003c\/th\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Harmonic Distortion\u003c\/th\u003e\n\u003ctd\u003e0.025%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSignal-to-Noise Ratio\u003c\/th\u003e\n\u003ctd\u003e100dB below rated output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDynamic Headroom\u003c\/th\u003e\n\u003ctd\u003e2.5dB at 8 ohms; 3.5dB at 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDamping Factor\u003c\/th\u003e\n\u003ctd\u003eGreater than 85 at 8 ohms; greater than 45 at 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated Power Band\u003c\/th\u003e\n\u003ctd\u003e20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency Response\u003c\/th\u003e\n\u003ctd\u003e+0\/-0.9dB from 20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit Configuration\u003c\/th\u003e\n\u003ctd\u003eClosed-loop digital switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Type\u003c\/th\u003e\n\u003ctd\u003eDirect coupled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBalanced Inputs\u003c\/th\u003e\n\u003ctd\u003e4 XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnbalanced Inputs\u003c\/th\u003e\n\u003ctd\u003e4 RCA plus stereo BUS input and output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeaker Connections\u003c\/th\u003e\n\u003ctd\u003eStandard 5-way binding posts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Control\u003c\/th\u003e\n\u003ctd\u003e12-volt trigger and automatic signal sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection\u003c\/th\u003e\n\u003ctd\u003ePower Guard® and Sentry Monitor™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeters\u003c\/th\u003e\n\u003ctd\u003eTwo blue Watt Meters displaying summed output for channels 1 + 2 and 3 + 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCooling\u003c\/th\u003e\n\u003ctd\u003eFanless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRack Mounting\u003c\/th\u003e\n\u003ctd\u003e2U with removable rack ears\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBTU Rating\u003c\/th\u003e\n\u003ctd\u003e1,000 BTU per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e17-1\/2 inches W without ears \/ 19 inches W with ears x 4-5\/16 inches H x 21 inches D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit Weight\u003c\/th\u003e\n\u003ctd\u003e23.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e40 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e3-year limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eCan the McIntosh MI254 be used for Dolby Atmos speakers?\u003c\/h4\u003e\n\u003cp\u003eYes. The four channels can power height, surround or rear-surround speakers when connected to a compatible A\/V processor with the required preamplifier outputs.\u003c\/p\u003e\n\u003ch4\u003eCan the MI254 power two stereo zones?\u003c\/h4\u003e\n\u003cp\u003eYes. Its four channels can be arranged as two stereo pairs. The stereo BUS connections make it especially convenient when both pairs will receive the same source signal.\u003c\/p\u003e\n\u003ch4\u003eDoes the MI254 have balanced XLR inputs?\u003c\/h4\u003e\n\u003cp\u003eYes. Each of the four channels has a balanced XLR input and an unbalanced RCA input.\u003c\/p\u003e\n\u003ch4\u003eCan the MI254 be bridged for more power?\u003c\/h4\u003e\n\u003cp\u003eNo bridge or parallel operating mode is specified. Each channel should be used independently at its rated output.\u003c\/p\u003e\n\u003ch4\u003eDoes the MI254 require a cooling fan?\u003c\/h4\u003e\n\u003cp\u003eNo. Its efficient Class D design is fanless, helping it operate quietly in a listening room or equipment rack.\u003c\/p\u003e\n\u003ch4\u003eAre rack ears included?\u003c\/h4\u003e\n\u003cp\u003eYes. The removable rack ears allow installation in a standard 19-inch rack and can be removed for conventional shelf placement.\u003c\/p\u003e\n\u003ch3\u003eAuthorized McIntosh Dealer Support\u003c\/h3\u003e\n\u003cp\u003eAudio Exchange is an authorized McIntosh dealer in Richmond, Virginia. Our team can help determine amplifier-channel requirements, speaker compatibility, processor integration and rack-planning needs for home theater and distributed-audio installations. Explore more options in our \u003ca href=\"\/collections\/mcintosh-power-amplifiers\"\u003eMcIntosh Power Amplifiers\u003c\/a\u003e and \u003ca href=\"\/collections\/mcintosh-home-theater\"\u003eMcIntosh Home Theater\u003c\/a\u003e collections.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":45731971072047,"sku":"MI254","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0235\/1375\/9791\/files\/mcintosh-mi254-digital-power-amplifier-angle.jpg?v=1785688070"}],"url":"https:\/\/audio-exchange.com\/collections\/mcintosh-multichannel-amplifiers.oembed","provider":"Audio-Exchange","version":"1.0","type":"link"}