Equalisers

Equalisers are fundamental signal processing tools used to shape tonal balance in recording, mixing and mastering. From early passive and valve designs to discrete transistor and integrated circuit based circuits, hardware equalisers have defined the frequency character of countless recordings.

This archive includes vintage studio equalisers alongside modern hardware designs and recreations of classic circuits. From broad program equalisers to fully parametric systems, these processors remain central to professional studio workflows and analogue production techniques.

Made In Japan

Released in 1986 /

Sony MU-E311 31 Band Equaliser

The Sony MU-E311 was part of Sony’s complete range of professional audio products, matching the aesthetic, sound quality and build quality of the Sony MU-R201 stereo digital reverb.

Explore the full Sony MU Series Series

Made In U.S.A.

Released in 1986 /

UREI 533 Octave Graphic Equaliser

The UREI 533 Octave Graphic Equaliser is a ten band, one octave graphic equaliser offering smooth filter combining, wide dynamic range, and low noise performance, designed for accurate and musical equalisation in professional audio systems.

Made In U.S.A.

Released in 1986 /

UREI 539 Room Equalisation Filter Set

The UREI 539 Room Equalisation Filter Set is a 27 band one third octave active equaliser with integrated band limit filters, designed for precise room tuning, high noise immunity, and stable long term performance in professional installed sound systems.

Made In U.S.A.

Released in 1987 /

SR&D Rockman Instrument Equalizer

The SR&D Rockman Instrument Equalizer is a 1987 12-band Rockmodule equaliser developed specifically for musical instruments. Seven bands are concentrated in the critical mid-range frequencies, with half-octave resolution, while passive noise-reduction circuitry, guitar and line-level operation, separate input and output level controls and footswitchable bypass provide the signal-management facilities required for instrument and studio use.

Made In Japan

Released in 1988 /

Roland E-660 Digital Parametric Equaliser

The Roland E-660 is a versatile two-channel digital equaliser with eight filters for precise sound adjustments, offering flexible configurations and intuitive controls, along with delay capabilities and extensive connectivity options.

Made In Japan

Released in 1988 /

Sony MU-E041 Parametric Equaliser

The Sony MU-E041 is a professional-grade parametric equaliser featuring four-band EQ with independent control, boost/cut level switch, and transformerless balanced input/output circuits.

Explore the full Sony MU Series Series

Made In U.S.A.

Released in 1989 /

Orban 642B Parametric Equaliser/Notch Filter

The Orban 642B Parametric Equaliser/Notch Filter was a professional true parametric equaliser offering dual 4-band or mono 8-band operation, constant-Q equalisation, +16dB boost, infinite cut, deep notch filtering, continuously tunable high-pass and low-pass filters, high headroom and professional balanced I/O for recording studio and sound reinforcement use.

Made In U.S.A.

Released in 1990 /

Manley EQP-1A Stereo Pultec EQ

Manley’s modern take on the Pultec EQ – in stereo! – with extra frequencies the original never had; a vastly superior power supply and famous Manley line amps complete the package. Magic on drums, killer on guitars.

Made In U.S.A.

Released in 1990 /

Manley Enhanced Pultec Equaliser

The Manley Enhanced Pultec Equaliser is Manley’s modern take on the Pultec EQ with extra frequencies the original never had; a vastly superior power supply and famous Manley line amps complete the package. Magic on kick drum, killer on guitars.

Made In Japan

Released in 1990 /

Sony SRP-E1031 Graphic Equaliser

The Sony SRP-E1031 Graphic Equaliser was the successor to the Sony MU-E311, retaining its 31-band 1:3 octave equalisation, adjustable high-pass and low-pass filtering, balanced professional audio connections, level controls, peak indicators, and rackmount format, while adding a 6 dB/12 dB equaliser slope button and a later black and grey Sony professional front panel design.

Made In Japan

Released in 1990 /

Boss PQ-50 Parametric Equaliser

The Boss PQ-50 is a half-rack 4-band parametric equaliser with per-band frequency, Q and level control, selectable peak or shelving on Low and High bands, overload indication, remote in/out switching and optional 482.6 mm rack mounting.

Explore the full Boss Pro Series Series

Made In Japan

Released in 1990 /

Boss GE-21 Graphic Equaliser

The Boss GE-21 is a precise 21-band half-octave graphic equaliser with ±15 dB sliders, ±15 dB Total Level control, overload warning, and pro-grade low noise and distortion.

Explore the full Boss Pro Series Series