Equalisers

Equalisers, or EQs, are tools used in recording studios to adjust the frequency response of an audio signal. Classic EQ units are typically used to cut or boost certain frequencies, allowing the engineer to shape the overall sound of a recording. The frequency bands that an EQ can adjust can vary, but most common EQs feature a low-frequency band, a mid-frequency band, and a high-frequency band. The engineer can adjust the gain of each band to either cut or boost specific frequency ranges in the audio signal.

Related Articles: Equalising for Spectral Character | The Birth of the Parametric Equaliser

Released in 2007
In the SPL PASSEQ they have revived the concept of the passive equaliser that was used in the 50’s and 60’s. The charming sound of this vintage technology combined with the modern 120V technology results in a very special equaliser.
Made In Germany
Released in 2007
The Buzz Audio REQ-2.2 is a stereo Class A equaliser offering mastering-grade precision, mid/side operation, and a musical parallel-band architecture with optional transformer outputs and is hand built in New Zealand.
Made In New Zealand
Released in 2007
The Chandler Limited Curve Bender is a modern equalizer by Chandler Limited, created for Abbey Road’s 75th anniversary. Inspired by classic EMI desks, it provides 51 EQ points and up to ±13.5dB cut/boost, with integrated mastering features.
Made In U.S.A.
Released in 2007
The Elysia Museq is an equaliser that combines premium sound shaping with optimally matched parameters and highest quality components, enabling the user to create musical results in no time at all.
Made In Germany
Released in 2007
The beginnings of the API 5500 circuit can be traced back to the original 550 equaliser designed by Saul Walker, the founder of Automated Processes Inc.
Made In U.S.A.
Released in 2008
The Langevin Mini Massive EQ packs the Massive Passive’s low and high band circuits into a compact 1U unit at half the cost. With expanded bell and shelf options, new high-Q curves, and Manley Rapture® amplifiers, it delivers exceptional clarity, headroom, and flexibility. Optional transformer-coupled outputs add vintage warmth, making it a powerful, precise tool for mastering and mixing.
Made In U.S.A.
Released in 2008
The Tonelux Equalux, released in 2008, is a 4-band discrete parametric equaliser with Proportional Q, shelving options, and hardwire bypass, delivering the musical tone of vintage EQs with modern refinements.
Made In U.S.A.
Released in 2009
Crane Song Ibis is an analogue equaliser that boldly takes equalisation to a new level of musicality.
Made In U.S.A.
Released in 2009
The Sebatron Switchblade is a stereo Class A EQ and diode compressor with four EQ bands, flexible compression controls, sidechain filtering, parallel compression, and LED metering, released in 2009.
Made In Australia
Released in 2010
A-Designs EM-EQ2 recreates the classic Pultec EQP-1 tone with modern reliability, offering two channels of smooth, musical EQ in a durable 2U unit for professional tracking, mixing, and mastering.
Made In U.S.A.
Released in 2010
The Tonelux Tilt is a 1U, 8-channel rackmount EQ that adapts the famous MP1a Tilt control, offering simple one-knob tonal balance per channel with IN/OUT and polarity switches, plus balanced XLR and D-SUB connectivity.
Made In U.S.A.
Released in 2012
The Mercury EQ-P2 is a dual-mono, 3U valve programme equaliser based on the Pultec EQP-1A, featuring transformer-balanced inputs and outputs, premium components, and Mercury’s unique I.S.T. Switch, providing two distinct tonal options per channel.
Made In U.S.A.