Pricing and availability

We compare 600+ stores and found this item at 9 stores. Prices updated .

Sweetwater
4.5 (4)
$299.99
Amazon
5.0 (1)
Used
Reverb
$299.99 2 available New
zZounds
4.0 (1)
$299.99
Thomann
4.3 (4)
$325.00 $322.00 $3.00 · All time low

Average Price: $325

Standard/Professional

$100

$501+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 7 merchants for "Harrison Audio MR3eq 500 Series Equalizer Module". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

For those seeking to elevate their studio recordings with the iconic sound of Harrison's legendary consoles, the Harrison Audio MR3eq 500 Series Equalizer Module is a must-have. Known for their role in crafting albums by iconic artists, Harrison consoles have defined the sound of a generation. The MR3eq brings that same classic analog warmth directly to your 500 series rack. This module is not just a nod to the past but a versatile tool for modern production, offering a 3-band parametric EQ and a high-pass filter, perfect for both broad tonal shaping and precise frequency adjustments.

The HI and LOW EQ sections allow you to switch between shelving and bell modes, thanks to the renowned proportional-Q feature, providing unparalleled control over your sound. With a boost/cut range of +/-10dB and a high-pass filter showcasing a characterful resonance peak, this module delivers rich harmonic distortion and dynamic band interaction. Whether you're enhancing vocals, adding depth to guitars, or taming harsh frequencies, the MR3eq is designed to bring the best out of any audio source.

Compatible with a wide range of 500 series racks, the MR3eq is an ideal addition to any setup. Its intuitive controls and distinct overload LED ensure that even in the heat of a session, you maintain precision and clarity. Experience why top engineers and producers continue to trust Harrison's legendary gear to craft their timeless recordings.

Key Features:

  • 3-band parametric EQ with +/-10dB boost/cut range
  • HI and LOW EQ sections switchable between shelf and bell modes
  • MID EQ with continuously variable Q control
  • High-pass filter with a characterful 2dB resonant peak
  • Compatible with 500 Series format chassis
  • Input overload LED for monitoring levels

Product specs

Type Solid State
Number of Channels Single
High Pass Filter Yes
Low Pass Filter Yes
EQ Parametric EQ
Number of Bands 3-band
Boost/Cut Range ±10dB
Q Type Proportional
Freq Range High 800Hz-15kHz
Freq Range Mid 400Hz-8kHz
Freq Range Low 40Hz-800Hz
Module Slot Size Single

FAQs

What type of EQ does the Harrison Audio MR3eq 500 Series Equalizer Module use?

The Harrison Audio MR3eq features a 3-band parametric EQ, allowing precise control over the frequency spectrum with adjustable bandwidth (Q) for each band.

Is the Harrison Audio MR3eq compatible with 500 Series format chassis?

Yes, the Harrison Audio MR3eq is designed to fit a single slot in a 500 Series format chassis, making it compatible with standard 500 Series racks.

Can the high and low bands on the Harrison Audio MR3eq be adjusted for different EQ shapes?

Yes, the high and low bands on the MR3eq are switchable between shelf and bell shapes, providing flexibility in shaping your sound.

What is the boost/cut range for the Harrison Audio MR3eq equalizer bands?

The Harrison Audio MR3eq offers a boost/cut range of ±10dB for each of its three EQ bands, allowing for significant tonal adjustments.

Does the Harrison Audio MR3eq include any filters?

The Harrison Audio MR3eq includes both high pass and low pass filters, each designed for surgical precision and musicality in sound shaping.

Harrison Audio

Harrison Audio

Introducing the Harrison 500 Series

Video thumbnail for Introducing the Harrison 500 Series by Harrison Audio

Introducing the Harrison 500 Series

Harrison Audio

Harrison Audio

Video thumbnail for Quick Hits: Harrison Audio 32Cpre+, Comp, & MR3eq 500 Series Modules by Vintage King

Quick Hits: Harrison Audio 32Cpre+, Comp, & MR3eq 500 Series Modules

Vintage King

Vintage King

Video thumbnail for New At NAMM 2024: Harrison Audio 32CPre+, COMP, & MR3eq 500 Series Modules by Vintage King

New At NAMM 2024: Harrison Audio 32CPre+, COMP, & MR3eq 500 Series Modules

Vintage King

Vintage King

Reviews

PROS

  • Highly musical EQ that enhances most sources beautifully

  • Smooth, transparent high-end with no harshness

  • Excellent for tone shaping with subtle knob adjustments

  • Surprising price point for its quality and performance

  • LPF extends to high frequencies, offering unique flexibility

  • Versatile filter options with switchable bands

  • Good build quality for long-term use

  • Keeps sound punchy with minimal phase issues

  • Analog hardware offers latency-free tracking

CONS

  • Sound can feel flat or sterile to some users

  • Broad frequency ranges make precise adjustments difficult

  • Minimal faceplate markings hinder visual reference and recall

  • Limited feature set with only three bands

  • Some users find it lacks dramatic EQ impact

Critic Reviews

Harrison MR3eq Review: Classic Console EQ Returns | Tape Op Magazine

tapeop.com

The Harrison Audio MR3eq 500 Series Equalizer Module strikes a fine balance between affordability and professional quality. Priced at $399, it offers a straightforward and intuitive layout, making it a joy to use for precise equalization without the fuss of added color or saturation. Its three parametric bands and classic high-pass filter excel in enhancing acoustic instruments and drums. While it lacks some features like a low pass filter and detented pots, its cost-effectiveness makes up for these minor omissions. Overall, the MR3eq is a solid, budget-friendly option for musicians seeking a reliable EQ for their setup.

positive

Harrison 32Cpre+, MR3eq and Comp 500 Series Units — A Mix Real-World Review

mixonline.com

Harrison Audio makes a strong debut in the 500 Series market with the MR3eq, 32Cpre+, and Comp modules. Each unit channels the legendary sound of Harrison's console heritage, offering superb analog quality. The MR3eq shines with versatile EQ options and a sound reminiscent of large-format consoles. The 32Cpre+ delivers clean, detailed audio with a few ergonomic quirks like a stiff 1/4-inch jack. Meanwhile, the Comp provides effective compression with a unique vibe, though it lacks an adjustable attack control. Despite some minor interface issues, the trio provides excellent performance and value, especially when used together.

positive

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