McIntosh MEN220 Room Correction System Unboxing

Room correction is an often-overlooked facet of two-channel audio. It’s more-commonly found in home theater systems, but McIntosh has taken it to the next level with the MEN220 two-channel room correction system.

I found the instructions a bit hard to understand at first, but after getting it all set up and working, the result was well worth the effort. In case you’re wondering, the MEN220 connects in between the pre-amplifier and the amplifier, with balanced or unbalanced connections.

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It works by measuring the frequency response in locations in your room, starting with your main listening position, then calculates a “room knowledge score” in percent. The higher the score, the better the MEN220 understands your room and can make corrections. You can increase the score by taking more measurements in different room locations. This will make your system sound better, allowing the MEN220 to make more accurate corrections to the room’s response.

McIntosh MEN220 Specifications

Frequency Response:

+0, -0.5dB from 20Hz to 20,000Hz

Total Harmonic Distortion:

0.002% from 20Hz to 20,000Hz

Maximum Input Voltage:

4.5V Unbalanced and Balanced (Preamp-Power Amp)
2.25V Unbalanced and Balanced (Processor Loop)

Maximum Output Voltage:

4.5V Unbalanced and Balanced (Preamp-Power Amp)
2.25V Unbalanced and Balanced (Processor Loop)

Signal-to-Noise Ratio (A-Weighted):

100dB

Input Impedance:

10K ohms Unbalanced and Balanced

Voltage Gain:

0dB

Output Impedance:

50 ohms

Crossover Filter Types, Order and Slope:

Butterworth, 1st order, 6dB/octave
Butterworth, 2nd order, 12dB/octave
Butterworth, 4th order, 24dB/octave
Linkwitz-Riley, 2nd order, 12dB/octave
Linkwitz-Riley, 4th order, 24dB/octave
Linkwitz-Riley, 8th order, 48dB/octave