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 accessible in the 500 Series format.

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 3dB 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… read more equalizer design uses state-of-the-art component technologies while preserving the sound quality found on hundreds 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 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 - 800Hz
- boost/cut range: +/-10 dB

The Bell Button
Changes the response from shelving mode to a second-order bell response with the classic Harrison 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.

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