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Harrison MR3eq

Item: REC0017186-000
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The Harrison MR3eq brings the legendary MR3 console sound as a 500-series EQ with 3 bands, bypass and a characterful HP filter.  All product info
Harrison

€ 339.00
€ 339.00 / 1 STÜCK,  incl. VAT
or extremely cheap from € 9.00 monthly financing
available soon, estimated to be in stock: Apr 3, 2026

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Harrison MR3eq

500-series EQ module with classic Harrison sound, 3-band EQ and musical high-pass filter

  • use the legendary Harrison sound in the compact API 500 format
  • use parametric 3-band EQ with ±10 dB boost and cut
  • versatile processing of the treble band from 800 Hz to 15 kHz
  • switch between shelf and bell characteristics
  • precisely tune the midrange from 400 Hz to 8 kHz
  • adjust the filter quality of the mids in a tunable manner
  • use high-pass filter with characteristic 2 dB resonance peak
  • Switch EQ and HPF separately via bypass
  • use input overload LED for reliable level control
  • versatile use for vocals, drums, guitars, synths and mix busses
  • easy integration into any API 500 chassis

Harrison MR3eq

Parametric 500-series EQ module with legendary Harrison sound

The Harrison MR3eq brings one of the most famous equalizers of the 80s into a modern API 500 format. Inspired by the legendary Harrison MR3 mixing console, this equalizer module delivers the exact musical, analogue character that shaped countless classic productions. The sound is not simply clean or precise, but carries exactly that blend of warmth, presence and musical depth that makes Harrison so popular to this day.

Whether for recording, in Mix or for targeted sound shaping of individual tracks: the MR3eq is made for fine corrections as well as for broad, characterful interventions. This makes it suitable for vocals, drums, guitars, synths, basses and practically any other signal that needs more contour, focus or analog elegance in Mix.

The classic Harrison sound in 500 format

For decades, Harrison has stood for "beautiful analog tone".

Harrison consoles have been used for albums by artists such as Michael Jackson, ABBA, Led Zeppelin, Queen and Donald Fagen. The parametric EQ of the MR3 was one of the reasons why this console established itself so quickly in large studios and with well-known producers.

With the MR3eq, you get exactly this sound aesthetic in a compact module that can be easily integrated into existing 500 series setups. This makes it particularly interesting for engineers and producers who want to combine classic console character with modern modularity.

Three bands for musical sound shaping

At the center of the module is a parametric 3-band EQ with ±10 dB boost/cut. The tuning is chosen so that both surgical corrections and broad, musical shaping are possible. Instead of appearing sterile, the EQ has a pleasantly organic effect on the signal and refines the sound without destroying it.

The MR3eq really comes into its own in productions that are not just about technical correction, but about real sound.

New functions: switchable treble band

The treble band covers a range from 800 Hz to 15 kHz and operates at 6 dB per octave. The ability to switch between shelf and bell characteristics is particularly exciting. This allows the EQ to be versatilely adapted to different sources.

This is extremely practical for airy vocals, silky overheads or a little more presence on acoustic guitars, as you can set the intervention either wide and open or more targeted, depending on the material.

New functions: tunable mids with flexible filter quality

The mid band works from 400 Hz to 8 kHz and has a tunable filter quality. This makes the MR3eq suitable for the targeted removal of unpleasant resonances as well as for the musical processing of important signal components.

Especially with vocals, snare, guitars or synth pads, this band helps you to make the sound either more focused or bigger without the intervention sounding artificial.

New functions: High-pass filter with resonance peak

The high-pass filter with 2 dB resonance peak is a real highlight. This is no ordinary low-cut filter, but a tool with character. When cutting low frequencies, it often retains a little more musical energy in the signal instead of simply making the source sound thinner.

Especially on vocals, guitars or overheads, this can provide a clean yet lively sound.

Bypass and control directly on the module

The MR3eq offers separate bypass switches for EQ and HPF for quick work in the studio. This allows you to hear immediately how much your intervention is actually working. An input overload LED also helps you to keep an eye on the level and drive the module cleanly.

This makes the MR3eq not only attractive in terms of sound, but also practical in everyday use.

Worth knowing

The appeal of many classic Harrison circuits lies in the fact that they not only change frequencies, but also shape signals musically. This is precisely why Harrison EQs often appear larger, rounder and more natural than many modern, very technical alternatives. The MR3eq is therefore not a sober correction tool, but rather a sound shaping device with real studio DNA.

Features:

  • Manufacturer: Harrison
  • Format: Api 500
  • Hardware type: Equalizer
  • Transformer balanced: Yes
  • Transformer manufacturer: Jensen
Harrison MR3eq Product ImageHarrison MR3eq
€ 339.00