McIntosh MQ112 - Black glass

Description

The Analog Approach to Room Correction

Most modern room correction relies on digital signal processing, which requires converting your purely analog sources into digital data. The McIntosh MQ112 takes a traditional, purist approach. It allows listeners to physically alter the audio signal to overcome room acoustic problems or improve older, imperfect recordings, all while keeping the signal entirely in the analog domain. By offering targeted frequency control without the latency of digital conversion, it respects the integrity of your stereo chain.

Eight Bands of Precision and the TILT Axis

At the heart of the unit is an 8-band analog equalizer providing a ±12 dB range of adjustment at key frequencies: 25 Hz, 50 Hz, 100 Hz, 200 Hz, 400 Hz, 1 kHz, 3 kHz, and 10 kHz. This granularity allows you to target specific room nodes or compensate for deficiencies in vintage tracks. Beyond the standard bands, a dedicated TILT knob provides a subtle tonal balance shift of ±6 dB anchored around a 650 Hz tilt axis. Turning this control allows you to simultaneously boost the bass while reducing the treble, or vice versa, reshaping the overall presentation with a single movement.

Seamless System Integration

Adding the equalizer to your stereo system is straightforward thanks to its comprehensive connectivity. The rear panel features one balanced and one unbalanced input, as well as dual sets of balanced and unbalanced outputs. The input type does not have to match the output type, allowing you to connect an unbalanced preamplifier and route the signal to balanced power amplifiers. It integrates directly between separated preamplifier and amplifier stages, or directly into the Processor Loop found on select latest-generation McIntosh preamplifiers like the C2800 or C55.

Preserving Signal Purity

Any component inserted into the signal path carries the risk of introducing noise, but this equalizer is engineered to meet McIntosh's exacting distortion standards. The low-noise circuitry achieves a signal-to-noise ratio of 115 dB, with total harmonic distortion held to 0.005% from 20 Hz to 20 kHz. It offers a maximum output voltage capability of 20 V balanced and 10 V unbalanced, ensuring it can drive any downstream amplifier to its full potential without compressing dynamic peaks. A hardware bypass function disables the circuit completely when adjustments are unnecessary.

Common Questions

Why choose the McIntosh MQ112?

The MQ112 is the dedicated analog equalizer for premium stereo systems, engineered for audiophiles who refuse to digitize their signal path. Unlike the McIntosh MEN220 which relies on digital RoomPerfect processing, the MQ112 offers physical, tactile control via eight ±12 dB adjustable bands and a dedicated TILT circuit. It is the ideal choice for manually sculpting your sound to overcome room acoustics or compensating for the deficiencies of older vintage recordings. Hand-assembled in Binghamton, NY, it is backed by a 3-year limited warranty and supported by McIntosh's authorized service network.

How do I use the TILT knob compared to the 8-band equalizer?

The 8-band equalizer targets specific frequencies from 25 Hz to 10 kHz to correct precise room nodes or acoustic dips in your listening space. The TILT knob operates much more broadly by pivoting the entire response by ±6 dB around a central 650 Hz axis. Turning it allows you to simultaneously warm up the sound (more bass, less treble) or brighten it (more treble, less bass) in a single fluid motion, without disrupting the relative balance of the individual EQ bands.

Where should I connect the equalizer in my stereo system?

The MQ112 is typically inserted directly between your preamplifier and your power amplifier. If you own an integrated amplifier, it can be connected provided the amp has removable jumpers separating the preamplifier section from the power amplifier. Recent McIntosh preamplifiers, such as the C2800 or C55, feature a dedicated Processor Loop that allows you to patch in the MQ112 seamlessly, removing it from the main signal path entirely when the EQ is bypassed.

Can I instantly compare the sound with and without equalization?

Yes, a true hardware bypass function is built into the unit. The front panel EQ Control knob features IN and OUT positions that completely bypass the equalization circuit so you can immediately compare your adjustments to the unaltered signal. You can also trigger this bypass remotely using the rear panel's EQ Control Trigger, allowing you to link the equalizer's activation to specific inputs on your McIntosh preamplifier.

What's in the Box

McIntosh MQ112 Environmental Equalizer

AC power cord

Owner's manual