McIntosh MA252 2-Channel Hybrid Integrated Amplifier

The McIntosh MA252 2-Channel Hybrid Integrated Amplifier combines the dimensional character of a vacuum tube preamplifier with the control, speed, and speaker-driving ability of a direct-coupled solid-state power amplifier. Its open-chassis design draws inspiration from the iconic McIntosh MC275 while providing a streamlined centerpiece for a dedicated two-channel music system.

Rated at 100 watts per channel into 8-ohm speakers and 160 watts per channel into 4-ohm speakers, the MA252 offers substantial real-world power in a compact 12-inch-wide chassis. It is an excellent fit for listeners who want McIntosh Hybrid Drive performance without the greater size, power, and system complexity of the MA352 or larger McIntosh integrated amplifiers.

Vacuum Tube Preamplification and Solid-State Power

The MA252 preamplifier stage uses two 12AX7A and two 12AT7 vacuum tubes, each housed in a protective stainless-steel cage. The tubes provide the signal gain and tonal character of a tube preamplifier before handing the music to a high-current solid-state output stage.

This hybrid architecture allows the MA252 to preserve natural tonal color, spatial depth, and smooth musical flow while maintaining firm bass control and the ability to drive a broad range of modern loudspeakers. The direct-coupled power amplifier delivers its rated output without an output transformer and reaches operating performance immediately after power-up.

A Purpose-Built All-Analog Integrated Amplifier

The MA252 is designed for listeners building a focused analog stereo system. It includes two unbalanced RCA line inputs, one balanced XLR input, and one dedicated moving-magnet phono input. Each input can be renamed, and input levels can be matched to reduce abrupt volume changes when switching between sources.

The MA252 does not contain a DAC, digital inputs, network streaming, Bluetooth, HDMI, or an upgradeable digital module. A separate streamer, DAC, CD player, or other source component is required for digital playback. Its phono stage is intended for moving-magnet and compatible high-output cartridges; a low-output moving-coil cartridge requires an external moving-coil phono preamplifier or suitable step-up device.

Speaker Protection and System Control

McIntosh Power Guard continuously monitors the output signal and makes real-time adjustments when the amplifier approaches clipping. If Power Guard activates, the tubes associated with the affected channel flash amber and return to green after the overload condition has passed. Sentry Monitor provides fuse-less short-circuit protection by disengaging the output stage before unsafe operating levels can damage the amplifier.

McIntosh Monogrammed Heatsinks are connected to the high-current output transistors to dissipate heat efficiently. Bass and treble controls allow practical tonal adjustment and can be bypassed when a direct signal path is preferred. A full-range mono subwoofer output makes it possible to extend low-frequency performance with a powered subwoofer.

Headphone Listening and Everyday Operation

A front-panel 1/4-inch High Drive headphone output supports private listening with a wide variety of headphones. The OLED display shows the selected input, volume level, and setup information, while the included remote controls input selection, volume, balance, tone settings, tone bypass, and input offset.

Key Features

• McIntosh Hybrid Drive vacuum tube preamplifier and solid-state power amplifier
• 100 watts per channel into 8 ohms
• 160 watts per channel into 4 ohms
• Two 12AX7A and two 12AT7 vacuum tubes
• Two unbalanced line inputs and one balanced line input
• Dedicated moving-magnet phono input with fixed loading
• Full-range mono subwoofer output
• 1/4-inch High Drive headphone output
• Bass and treble tone controls with tone bypass
• McIntosh Power Guard and Sentry Monitor protection
• McIntosh Monogrammed Heatsinks
• Input naming and input-level matching
• Polished stainless-steel dual-layer chassis
• Included remote control

Choosing the MA252 for Your System

The MA252 is especially compelling for a music-focused room where four analog inputs are sufficient and where 100 to 160 watts per channel provides appropriate headroom for the selected loudspeakers. Its relatively compact footprint can make it easier to place than a full-width integrated amplifier, but the exposed tubes and heatsinks still require adequate open ventilation.

Speaker sensitivity, nominal impedance, room size, listening distance, and preferred playback level all affect the final result. Audio Exchange can help determine whether the MA252 is the right match for your speakers and compare it directly with the more powerful MA352 and other McIntosh integrated amplifier options.

Technical Specifications

Experience McIntosh at Audio Exchange

Availability, demonstrations, system matching, trade-in possibilities, delivery, and setup are coordinated individually. Contact Audio Exchange for current MA252 availability and help designing a complete system around your speakers, turntable, digital sources, and listening space.

Explore more McIntosh integrated amplifiers or view the complete McIntosh collection.