McIntosh MQ-104

Regular price $299.99
Regular price Sale price $299.99
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2.5 volts.

27 kΩ.

Unity gain.


2.5 volts into 27 kΩ or more.

Output source impedance: 600 Ω.

The output is coupled through small capacitors, so don't load this with 600 Ω or you will lose low-frequency response (see measurements).

Frequency Response

20 ~ 20,000 cycles.


Flat: 90 dB below 2.5V rated output (79 µV).

Worst case: 85 dB below 2.5 V rated output (141 µV).


Harmonic and IM Distortion: < 0.1% from 20 ~ 20,000 cycles at rated output.


Low Frequency Boost

Four levels of boost (numbered 2 through 5) optimized for early McIntosh speakers.

Flat setting: marked "1."

Maximum boost: 17 dB at 20 cycles.

McIntosh MQ104 Equalizer

Replaced Filter Caps

Cleaned and tested
90 Days

Pre-owned Guarantee

Just Audio understands the importance of trust when investing in pre-owned or vintage audio components. That’s why we offer a reassuring 90-day warranty on our products. This warranty is a commitment that each piece of equipment you purchase has been meticulously tested and is in excellent working condition. During these 90 days, should any issue arise, Just Audio is dedicated to resolving it promptly, ensuring that your experience with your vintage or pre-owned component is seamless and enjoyable. This warranty underlines Just Audio’s confidence in the quality and durability of their products and their continuous support to you, our valued customer. Enjoy the rich, authentic sounds of your pre-owned audio component with the peace of mind that Just Audio’s 90-day warranty brings.