{"product_id":"mcintosh-mi1250-12-channel-power-amplifier","title":"McIntosh MI1250 12-Channel Digital Power Amplifier","description":"\u003ch2\u003eMcIntosh MI1250: 12-Channel Power for Whole-House Audio\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcIntosh MI1250 12-channel digital power amplifier\u003c\/strong\u003e is designed to deliver clean, reliable music playback throughout a professionally installed multi-room audio system. Twelve independent amplifier channels provide 50 watts per channel into 8-ohm speakers or 90 watts per channel into 4-ohm speakers, giving an installer the flexibility to power up to six stereo listening zones from a single compact component.\u003c\/p\u003e\n\u003cp\u003eClosed-loop digital switching amplifier technology combines high efficiency with robust power supplies, allowing the MI1250 to operate quietly without cooling fans. Its included removable rack ears make it suitable for a standard 2U equipment rack, while its understated black glass front panel maintains the unmistakable McIntosh appearance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e12 independent amplifier channels\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e50 watts per channel into 8 ohms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e90 watts per channel into 4 ohms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEfficient closed-loop Class D amplification\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFanless operation for quiet equipment rooms and living spaces\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2U rack mountable with removable mounting ears included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndividual unbalanced inputs and level controls for each channel\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBussable analog and digital inputs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eChannel summing for flexible mono signal distribution\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower Guard® speaker protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSentry Monitor™ short-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAutomatic signal-sensing power control and 12-volt triggering\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSix Stereo Zones from One Amplifier\u003c\/h2\u003e\n\u003cp\u003eWith twelve available channels, the MI1250 can power as many as six conventional stereo zones from a single chassis. It is well suited to distributed audio systems serving kitchens, bedrooms, offices, patios, and other secondary listening areas where dependable performance, efficient rack usage, and centralized control are essential.\u003c\/p\u003e\n\u003cp\u003eEach channel includes its own unbalanced input and volume adjustment, allowing an installer to balance output levels for different rooms, speaker sensitivities, and cable runs. Channel-summing controls can also distribute mono audio where stereo playback is unnecessary or impractical.\u003c\/p\u003e\n\u003ch2\u003eBussable Inputs for Flexible System Design\u003c\/h2\u003e\n\u003cp\u003eThe MI1250 includes BUS inputs and outputs that make it easier to route the same stereo source to multiple channel pairs or expand a larger distributed audio installation across more than one amplifier. Coaxial and optical digital audio inputs can also be used with the bus system, reducing the need for additional source-conversion hardware in compatible installations.\u003c\/p\u003e\n\u003cp\u003eIndividual channel inputs remain available when separate zone outputs are supplied by a multi-zone preamplifier or audio matrix. This combination of local inputs, bussing, and channel summing gives integrators the flexibility to design the amplifier around the needs of the home rather than forcing every room into the same configuration.\u003c\/p\u003e\n\u003ch2\u003eQuiet, Efficient Class D Operation\u003c\/h2\u003e\n\u003cp\u003eThe MI1250 uses highly efficient closed-loop digital switching amplifiers and does not require noisy cooling fans during normal operation. Its 2U rack height conserves valuable equipment-space while the included removable rack ears allow either rack-mounted or shelf-based installation.\u003c\/p\u003e\n\u003cp\u003eMulti-color front-panel LEDs display the operating status of each channel, giving installers and system owners a quick visual indication of amplifier activity and protection conditions.\u003c\/p\u003e\n\u003ch2\u003eMcIntosh Protection and Power Control\u003c\/h2\u003e\n\u003cp\u003eMcIntosh Power Guard® monitors the output signal and helps prevent clipping from overdriving connected speakers. Sentry Monitor™ protects the amplifier against short-circuit conditions by disengaging the output stage before current reaches unsafe levels and automatically restoring operation after conditions return to normal.\u003c\/p\u003e\n\u003cp\u003eAutomatic signal sensing can turn the amplifier on when an input signal is detected and place it into standby after an adjustable period without a signal. McIntosh Power Control connections also support coordinated operation with compatible components through 12-volt triggering.\u003c\/p\u003e\n\u003ch2\u003eDesigned for Professional Custom Installation\u003c\/h2\u003e\n\u003cp\u003eThe rear panel provides unbalanced analog inputs, BUS connections, coaxial and optical digital inputs, individual level controls, and compact 2-pole Phoenix-style speaker terminals. These installer-focused connections help keep a dense multi-zone equipment rack organized while providing access to the adjustments needed during system commissioning.\u003c\/p\u003e\n\u003ch2\u003eMcIntosh MI1250 at Audio Exchange\u003c\/h2\u003e\n\u003cp\u003eAudio Exchange is an authorized McIntosh dealer in Richmond, Virginia. The MI1250 is intended for properly planned distributed audio systems, and our team can assist with zone layouts, speaker selection, preamplifier or audio-matrix matching, rack ventilation, wiring, programming, and professional installation.\u003c\/p\u003e\n\u003cp\u003eContact Audio Exchange for current availability or help planning a complete whole-house music system. Explore our \u003ca href=\"\/collections\/mcintosh-power-amplifiers\"\u003eMcIntosh Power Amplifiers\u003c\/a\u003e and the complete \u003ca href=\"\/collections\/mcintosh\"\u003eMcIntosh Labs\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAmplifier Type\u003c\/th\u003e\n\u003ctd\u003e12-channel digital power amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Application\u003c\/th\u003e\n\u003ctd\u003eMulti-zone and whole-house distributed audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Channels\u003c\/th\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Output into 8 Ohms\u003c\/th\u003e\n\u003ctd\u003e50 watts per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Output into 4 Ohms\u003c\/th\u003e\n\u003ctd\u003e90 watts per channel\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\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 into 8 ohms; 3.3dB into 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDamping Factor\u003c\/th\u003e\n\u003ctd\u003eGreater than 65 into 8 ohms; greater than 32 into 4 ohms\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 inputs for each channel plus BUS connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDigital Inputs\u003c\/th\u003e\n\u003ctd\u003eCoaxial and optical digital audio inputs for bussing\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\u003eProtection\u003c\/th\u003e\n\u003ctd\u003ePower Guard® and Sentry Monitor™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Control\u003c\/th\u003e\n\u003ctd\u003e12-volt Power Control and automatic signal sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRack Mounting\u003c\/th\u003e\n\u003ctd\u003e2U; removable mounting ears included\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\u003eFront Panel\u003c\/th\u003e\n\u003ctd\u003eBlack glass with multi-color channel-status LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e17-1\/2 in W (19 in with rack ears) × 4-5\/16 in H × 21 in D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit Weight\u003c\/th\u003e\n\u003ctd\u003e22 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e38.4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e3-year limited manufacturer warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":45732082581551,"sku":"MI1250","price":4500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0235\/1375\/9791\/files\/mcintosh-mi1250-12-channel-power-amplifier-front.jpg?v=1785692270","url":"https:\/\/audio-exchange.com\/products\/mcintosh-mi1250-12-channel-power-amplifier","provider":"Audio-Exchange","version":"1.0","type":"link"}