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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 2013

TUBE-TECH ME 1B Midrange Equaliser

The TUBE-TECH ME 1B is a passive, all-tube midrange equaliser inspired by the Pultec MEQ-5, featuring two boost sections and one dip section. With a broader bandwidth for smooth and musical EQ, it’s ideal for vocals, instruments, and midrange sources. It pairs perfectly with the PE 1C and is great for adding warmth and character, including the iconic Motown midrange sound.
TUBE-TECH ME 1B
Released in 2014

IGS Rubber Bands Equaliser

The IGS Rubber Bands Equaliser offers an all tube Pultec style equaliser.
IG Rubber Bands
Released in 2014

Elysia Xfilter 4 Band Equaliser

The Elysia Xfilter is a four-band analogue equaliser offering true stereo operation by linking dual channels with precision-matched components. Its flexible outer bands switch between shelving and resonant cut filters, the mid bands feature selectable wide or narrow Q factors, and an additional passive LC high-band filter adds polish, all while minimising noise with dedicated ground shielding.
Elysia Xfilter
Released in 2014

IGS iQ Inductor Equaliser

The IGS iQ Inductor Equaliser offers the sweetest parametric EQ sound, with inductors offering similar saturation to transformers.
IGS iQ
Released in 2015

Elysia Nvelope Shelving Equaliser

Elysia Nvelope is a versatile dual-channel impulse shaper and shelving equaliser that offers Full Range, Dual Band, EQ and Mixed modes for precise transient and sustain control, complete with an Auto Gain function to maintain consistent output levels and the option of Dual Mono or True Stereo operation.
Elysia Nvelope
Released in 2015

TUBE-TECH HLT 2A Equaliser

The TUBE-TECH HLT 2A is a unique equaliser, blending high and low shelving EQ, high and low cut filters, and an innovative “tilt” midrange EQ. This is the first time such a filter combination has been created in the analogue domain.
Tube-Tech HLT 2A
Released in 2016

Thermionic Culture The Swift Equaliser

The Thermionic Culture The Swift is a two-channel valve equaliser suited to both individual tracks and stereo mix buses, offering Baxandall-style active bass and treble controls, a Presence switch, passive Pultec-inspired mid lift, high-pass filter, mid cut and Air circuit. It delivers up to +20 dBu output with minimal noise and uses only two valves per channel alongside custom Sowter transformers for a clean, musical sound.
Thermionic Culture The Swift
Released in 2016

SPL PQ Mastering Equaliser

The SPL PQ is a unique equaliser, for several reasons. It has two times five fully parametric filter bands, each of which can be switched between constant Q and proportional Q! And there’s sheer unlimited headroom and a very special kind of EQ sound – thanks to 120V technology.
SPL PQ
Released in 2016

Undertone Audio MPEQ-1 Equaliser

The Undertone Audio MPEQ-1 is one of the most powerful and musical Class A equalisers ever built as well as a wonderfully flexible, beautiful sounding Class A Mic Preamp/DI.
Undertone Audio MPEQ-1
Released in 2016

Tegeler Creme Bus Compressor & Mastering Equaliser

The Tegeler Creme combines a passive EQ based on the Pultec principle and a high-end bus compressor in a single device.
Tegeler Creme
Released in 2016

Dangerous BAX EQ

At the heart of this stereo unit are gently sweeping treble and bass EQ shelves (the Baxandall Curves) that give you subtle yet profound control over wide sections of the frequency spectrum. The opposite of a surgical tool, the BAX EQ is all about sweetening sounds with broad, musical adjustments.
Dangerous BAX EQ
Released in 2017

Warm Audio EQP-WA Program Tube Equaliser

The Warm Audio EQP-WA Program Tube Equaliser is a faithful recreation of the industry-standard tube equaliser, the Pultec EQP-1A.
Warm Audio EQP-WA
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