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Heritage Audio MOTORCITY EQualizer - Dual Stereo Set

Completely analog, passive EQ design with seven accessible frequency points across the tonal spectrum - a replica of Michael Brauer's units designed at Motown's "Hitsville" studio in specially-priced stereo pair

MFR# Dual Set Motor City EQs

Product Description


Save when you buy a pair of the Holy Grail of EQs - now through October Heritage Audio is taking $1000 off the MOTORCITY Equalizer when purchased as a stereo pair!

Occasionally, something so special arrives, it turns the music industry upside down (and inside out). That is why Heritage Audio is incredibly pleased to offer the world's first reproduction (and a dead-on one at that) of the "Holy Grail" of classic EQs: the Heritage Audio MOTORCITY EQualizer.

Recreated from Motown units owned by eight-time Grammy-winning producer, mixdown artist, and innovative engineering genius Michael Brauer, Heritage Audio has left no stone unturned, recreating the unmistakably huge, punchy, and warm signature sound that makes this EQ as classic as the hits it helped create. From the 10-gauge hand-brushed aluminum faceplate, historically accurate control layout including custom molded bakelite knobs, the MOTORCITY Equalizer looks the part. More importantly, the unique passive equalization circuit is identical and fully faithful to the original design. The MOTORCITY EQualizer is so precise, it stands as the only EQ available that can rival, or even "best" the popular Pultec EQ.

It was no simple task to make a 100% accurate reincarnation. Peter Rodriguez and his team from Heritage Audio worked for weeks with their friends at Black Lion Audio. Seth Berman from Black Lion Audio's NY facility took the lead in getting the info together for Heritage to work their magic. The exceptionally tight mil-spec 1960s tone capacitors and inductors are simply no longer available. Replace with an alternate? Not on your life. Heritage Audio had custom recreations built from scratch. Each with exact materials, values, and tolerances: a perfect interchangeable clone of the very few originals remaining. Just add 60 years of dust, and you've got twins

The MOTORCITY EQualizer is a completely analog, passive EQ design with seven accessible frequency points across the tonal spectrum. Each frequency has a stepped rotary switch capable of flat response, or up or down up 8db in 1 dB increments. Frequency points graduate from 50 Hz, 130 Hz, 320 Hz and 800 Hz before jumping to 2000 Hz, 5000 Hz, peaking at 12,500 Hz. The front panel also features a simple in/out/off toggle switch with top hat knob and jewel light power indicator. All rotary switches have easy to read from a distance "General Radio" bakelite style knobs recreated to look exactly like the originals (remember, this is not a slider-style graphic EQ). Finally, it features a master gain control (-8 dB/+8 dB), again in 1 dB increments. The incredibly simple 1960s accurate back panel features a power supply jack, and an XLR input and output. The sound itself is exactly what you'd expect. It packs a punch without sounding harsh or distorted. While something as simple as an analog seven-band EQ might sound more like hype than hyper goodness, hearing is believing. Why has Heritage audio gone through the seemingly impossible task of bringing them back to life? Michael Brauer will tell you this: It simply got that sound! The Heritage audio MOTORCITY EQ is not a digital equivalent, not a respectfully close replica and not a more compatible modernized "improvement." The MOTORCITY EQualizer is nothing more or less than the genuine article finally made available for the general public. For the very first time in history, you can integrate this true spec to spec carbon copy of both form and function into your own studio.


  • Dead nuts replica of Michael Brauer's units designed at Motown's "Hitsville" studio for private use
  • First time publicly available - Motown's Chief technical engineer and miracle worker Mike McLean's take on the smart graphic EQ designed for the film industry and made by Cinema Engineering, Langevin and Altec
  • Shockingly clever passive design uses no less than 21 inductors and 21 tone capacitors ( 3 each per band) exclusively made for Heritage Audio, matching Brauer's values to 1% tolerances
  • Heavy-duty stepped rotary switches used for all 7 eq bands and gain control
  • UTC replica input transformer with modified turns ratio for better integration into modern studios
  • Exclusively made for Heritage Audio
  • Carnhill-driven output line amp substitutes the original's Achilles heel Opamp-labs output
  • In/Out/Off Lever switch allows you to A/B the effect of EQ settings

Product Specifications

Condition New
Unit Weight 15 lb
Tube or Solid State Solid State
Chassis 19-inch Rack-mount
Rack Spaces 2U
Input Connectors Analog XLR
Output Connectors Analog XLR

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
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This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
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The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
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