Lot # 85 - Vintage McIntosh MQ 102 Environmental Equalizer w manual

Opening Bid : $ 5.00
Start Date/Time: 20-Oct-2026 7:00:00 AM
End Date/Time: 27-Oct-2026 7:24:00 PM
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Description :

highly collectible vintage McIntosh MQ 102 Environmental Equalizer, complete with its original Owner's Manual and official factory Service Information documentation.

Produced by McIntosh Laboratory between 1970 and 1978, this specialized low-frequency compensation equalizer was designed specifically to optimize the bass response of legendary McIntosh speaker systems (such as the ML-1C, ML-2C, and ML-10C). It is a must-have piece for any vintage McIntosh purist or audio collector looking to complete an authentic period-correct system.

Features the classic chrome-and-black chassis. The faceplate text remains clear and crisp. The knobs turn smoothly. The rear input/output RCA jacks and original power cord are fully intact.

Comprehensive technical factory paperwork included which is highly sought after by vintage technicians and audiophiles


  • Selectable Equalization: Independent Left and Right channel low-frequency contour knobs (Positions 1–5).
  • Input Attenuation: 3-position switch (0dB, -6dB, -12dB) to perfectly match your preamplifier's output levels
  • Pure Analog Design: Ultra-low distortion (<0.1% THD) ensures complete sonic transparency in your signal chain.

Auction History

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PAYMENT DETAILS

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Pick-up information will be on the invoice e-mailed after the auction closes.All items not picked up during the designated times will be considered abandoned and may be donated or resold. When possible, and at our sole discretion, an alternate pick-up time may be arranged. If this is possible, an appropriate fee will be charged. 

A 12% Buyer's Premium and Sales Tax are added to the winning bid amount when invoiced. Sales tax is waived for licensed re-sellers.

We make every effort to describe lot items as accurately as possible. Expect normal signs of wear associated with antiques, vintage, and used items. We do not list every flaw. All items are sold AS IS WHERE IS. No refunds or returns. Sound Estate Company does not guarantee the working order of any clock, watch, electronic or mechanical device. Dimensions given may be approximate.

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