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The Solid State Logic Harrison MR3eq has the vibe to inspire & the precision to excel. Featuring precise controls, separate high pass filters, shelf or bell-shape cuts, & input overload LED.
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The Harrison Audio MR3eq takes the massive, punchy sound that carved out countless ‘70s and ‘80s hit records and shrinks it down into a sleek 500 Series format. You get the same analog wizardry and smooth frequency sculpting that top-tier engineers have relied on for decades, now resting comfortably in your favorite lunchbox chassis. It delivers a rich, colorful sonic character that breathes life into sterile digital tracks, giving your mixes that unmistakable, radio-ready polish without the massive console footprint.


While many modern EQs chase sterile precision, the MR3eq delivers pure musical soul. Born from the DNA of the legendary 1981 Music Recording 3 console, this module injects your audio with the subtle warmth and interactive band dynamics that define classic analog gear. It’s like reaching back in time to borrow the very circuitry that made iconic albums sound so massive.
Flat, lifeless tracks are a thing of the past. The MR3eq equips you with a highly versatile three-band parametric equalizer, allowing you to paint with broad musical strokes or carve out problematic frequencies with expert precision. It’s an intuitive layout designed to keep you focused on the music, rather than hunting for the right frequency.




Great sound is only half the battle; workflow is everything. The MR3eq features smart design choices that make A/B testing and signal management incredibly straightforward. You spend less time second-guessing your decisions and more time pushing your mix forward.
The Harrison Audio MR3eq is what happens when you combine decades of legendary console design with modern studio convenience. It captures the heart of vintage analog warmth while offering the exact control you need for modern mixing. It’s a module for audio engineers who want to quickly dial in world-class tone and move forward with total confidence.


The MR3eq is designed specifically to fit and operate in standard 500 Series format racks and chassis.
Yes, it includes a dedicated, separate high pass filter section with its own independent bypass switch.
The Bell button changes the high or low shelving response to a second-order bell curve with proportional Q.
Yes, the module features completely separate 'In' switches for the main EQ section and the High Pass Filter.
Each of the three parametric bands offers a generous boost/cut range of +/- 10 dB.