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 U.S.A.

Released in 2006 /

Mercury EQ-H1 Pultec Equaliser

The Mercury EQ-H1 is a tube-driven programme equaliser based on the Pultec EQH, offering punchy low-end, silky highs, transformer-balanced paths, and expanded frequencies, all with the warmth and musicality of true passive EQ design.

Made In U.S.A.

Released in 2006 /

Mercury EQ-P1 Pultec Equaliser

The Mercury EQ-P1 is a valve-driven programme equaliser based on the Pultec EQP-1A, featuring transformer-balanced paths, premium components, and Mercury’s unique I.S.T. Switch, delivering both vintage warmth and a more open, modern character in one unit.

Made In U.K.

Released in 2006 /

Klark Teknik DN 370 Graphic Equaliser

The Klark Teknik DN 370 is the latest evolutionary step in a process of design refinement that goes back over 30 years. With DN 370 we’ve started from the ground up and produced a unit that is totally without compromise, and one that we believe is the finest professional graphic equaliser in the world today. It also perfectly complements the existing Klark Teknik range of equalisers, both analogue and digital.

Made In Germany

Released in 2006 /

Tegeler EQP-1 Equaliser

The Tegeler EQP-1 Equaliser delivers vintage analogue sound with bass, treble, and high-frequency controls. Its valve stage and transformers add warmth and clarity, enhancing mixes even when bypassed.

Made In Germany

Released in 2007 /

SPL PassEQ Passive Mastering Equaliser

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 New Zealand

Released in 2007 /

Buzz Audio REQ-2.2 Mastering Equaliser

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 U.S.A.

Released in 2007 /

Chandler Limited Curve Bender Equaliser

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 Germany

Released in 2007 /

Elysia Museq Mastering Equaliser

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 U.S.A.

Released in 2007 /

API 5500 Dual Equaliser

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 /

Langevin Mini Massive Equaliser

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 /

Tonelux Equalux Stereo Parametric Equaliser

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 Equaliser

Crane Song Ibis is an analogue equaliser that boldly takes equalisation to a new level of musicality.