Chat with us, powered by LiveChat

Harrison Audio MR3eq 500 Series 32c 3-Band EQ

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.

OR

h m s

free-shipping-icon
In Stock!
Remove one item Add one item

Compare

Compare! Here are all the serial numbers of this model we have in stock. Compare them all and select your favorite!

    2 Day Shipping Icon

    Fast & Free Shipping

    Did you know AMS is the only music distributor with four distribution centers? And that means we can offer super-fast shipping on all your music products. Whether you don’t want the spark of inspiration to fade or you really need that replacement speaker before the next show, we have you covered anywhere in the U.S. And even better, it’s FREE!

    Free Extended Warranty

    Free 12 Month Extended Warranty

    You shouldn’t have to pay extra for a little peace of mind. When you purchase from AMS, you’ll get a free 12-month extended warranty to cover your purchase — and that’s in addition to any manufacturer’s warranties! Thousands of items in our catalog feature the “Gold Lock Extended Warranty,” so you can feel confident in your purchase.

    45 Day return

    Sometimes the gear on the computer screen seems like a better fit than when you actually get your hands on it. We understand, and that’s why AMS offers an industry-leading 45-day money-back guarantee. If you’re not happy with an item, you have a full month and a half to send it back! We don’t want to just sell you gear. We want to sell you the RIGHT gear — even if it takes a few tries.

    Canadian Shipping Information

    Welcome Canadian musicians! Buying your gear from AMS is as easy as going to a local music store, with more selection and more than competitive prices!

    Items with this logo are eligible to ship to Canada. Please note that you will be responsible for payment of brokerage fees, duties and other import taxes applicable to your order.

    NOTE: Free shipping offers do not apply to Canadian orders. Please be aware of custom fees - such as taxes and duties - when your order arrives. Since these fees vary from location to location, CUSTOMS FEES ARE NOT INCLUDED IN SHIPPING CHARGES. Please check with your local customs office for more information on the fees in your areas. Refusal to pay these fees will result in an undeliverable order. If returned, we do not refund shipping charges and may assess restocking fees to cover return shipping expenses.

    Rock Now Pay Later

    0% Interest Payment Plan

    Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.

    Non Factory Sealed Items

    Non Factory Sealed are items that have been opened but are in perfect physical condition such as customer returns, open box for product photos/videos, demo stock, etc. They have been carefully inspected and repacked by qualified AMS employees to help ensure your satisfaction, allowing you to get great gear at a discounted price. They include all components, manuals and the full Manufacturer's warranty unless otherwise stated, along with the AMS 45-day Money-Back Guarantee. Special offers, promotions and rebates may not apply. The following manufacturers do not offer a warranty on Non-Factory Sealed items: Casio, Ampeg, Avalon, Chauvet, Electro-Voice, Ibanez, Mackie, Martin, Peavey

    AMS Agent

    Have questions? 
    Talk to a sales specialist!

    800-319-9043

    Initially developed for the Harrison MR3 studio console, the MR3eq stands out as one of Harrison's most popular EQ designs, renowned for its punchy, smooth sound and powerful sculpting capabilities. Introduced in 1981, the Music Recording 3 (MR3) console rapidly became the preferred tool for numerous leading engineers and studios worldwide, helping to create some of the most iconic albums from the 70s and 80s. Like all Harrison production tools, the MR3 EQ delivers the vibe to inspire artists and the precision for engineers to excel. Thanks to the MR3eq module, the distinctive Harrison sound is now accessible in the 500 Series format. 

     

    Harrison MR3eq 500 Series 32c 3-Band EQ Features:

    • The Harrison sound
    • Perfect for both precision EQ’ing and broad musical strokes
    • Three-band parametric EQ with +/- 10 dB boost/cut range
    • High-frequency (800 Hz –15 kHz) 6 dB/octave Shelf band, switchable to 2nd order bell
    • Mid-band (400 Hz – 8 kHz) with continuously variable, proportional Q
    • Separate High Pass Filter with 3 dB corner frequency
    • Separate ‘In’ switches for EQ and HPF sections
    • Input overload LED
    • Compatible with 500 Series format chassis

     

    The MR3eq is a high-performance analog EQ crafted from decades of experience in equalizer and filter design. Its circuit design allows for precision in surgical tasks or the creation of broad musical strokes with lots of band interaction for a rich and colorful sonic character. 


    The MR3eq is a proven equalizer design that provides warm yet highly accurate results. This equalizer design uses state-of-the-art component technologies while preserving the sound quality found on 100's of hit records produced over the decades.


    The MR3eq includes a highly versatile three-band parametric equalizer with a high pass filter section. This equalizer provides what you need across various sources in your recordings or mixes. The MR3eq is the third generation of classic equalizer designs found in legendary Harrison console designs from the 70s and 80s.


    With your new MR3eq module, your recordings and mixes will instantly have a punch, smoothness, and accuracy that only comes with high performance analog circuit design, along with decades of experience in equalizer and filter design and development.


    This module has been specifically designed to operate in a 500 format rack such as the API lunch box or equivalent. In common with many such modules, the nominal input/output operating level is +4 dBu.

     

    The Harrison Team Parametric EQ  

    The HI EQ section

    Provides a 6 dB/octave shelving response with a corner frequency and boost/cut on separate knobs. 

    • corner frequency range: 800 Hz – 15 kHz
    • boost/cut range: +/-10 dB

     

    The MID EQ Section 

    Provides a continuously variable Q control ranging from narrow to wide, with a center frequency and boost/cut controls on separate knobs.

    • Center Frequency Range: 400 Hz – 8 kHz
    • Boost/Cut Range: +/-10 dB

     

    The LOW EQ Section

    Provides a 6 dB/octave shelving response with corner frequency and boost/cut on separate knobs.

    • Corner Frequency Range: 40 Hz – 800 Hz
    • Boost/Cut Range: +/-10 dB

     

    The Bell Button

    Changes the response from shelving mode to a second-order bell response with the classic Harrison a proportional-Q feature where the Q narrows as the boost increases. The frequency knob now controls the center frequency of the response. The boost/cut range remains +/-10 dB. 

     

    Shop Similar Models
    Copyright © 1996-2025 American Musical Supply, Inc. All rights reserved