Harrison Audio MR3eq 500 Series EQ

Lustrous, Smooth Harrison Audio EQ

Over the last 50 years, Harrison Audio consoles have recorded and lent a special sweetness to some of the world’s most beloved albums. Marshall Music studio engineers are thrilled that they can now bring home some of that sonic sugar in the form of the 500 Series Harrison Audio MR3eq EQ unit. This amazingly versatile 3-band parametric equalizer with highpass filter is the third generation of classic Harrison equalizer designs found in their legendary consoles from the ’70s and ’80s. Its high-performance analog circuit design is guaranteed to bring a smooth, velvety quality to your vocals, drums, guitars, keyboards, and anything else you run through it.

Classic Harrison Sound with proportional-Q

The Harrison Audio MR3eq EQ’s HI and LOW EQ sections employ a 6dB-per-octave shelving response with corner frequency and boost/cut on separate potentiometers. The bell button on both sections changes their response from shelving mode to a 2nd-order bell, which utilizes the famous Harrison proportional-Q feature — i.e., the bandwidth (Q) narrows as the boost increases. The boost/cut range remains +/-10dB, and the frequency knob now controls the response’s center frequency. Likewise, the MID EQ section yields a continuously variable Q control ranging from narrow to wide with its center frequency and boost/cut controls on separate pots. Finally, the HP (highpass) filter section wields a 12dB-per-octave slope with a 3dB corner frequency range.

Harrison Audio MR3eq EQ Features:

• 500 Series 3-band parametric EQ with revered Harrison sound and versatility
• 3rd generation of Harrison equalizer designs derived from their ’70s and ’80s consoles
• Made with top-quality components
• Lends a fine, silk quality to vocals, drums, guitars, and much more
• HI EQ section with corner frequency range of 800Hz–15kHz and boost/cut range of +/-10dB
• LOW EQ section with corner frequency range of 40Hz–800Hz and boost/cut range of +/-10dB
• MID EQ section with corner frequency range 400Hz–8kHz and boost/cut range of +/-10dB
• HPF with corner frequency range of 25Hz–3.1kHz

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