Released in 1951

Pultec EQP-1 Program Equaliser

First introduced in 1951, the Pultec EQP-1 Program Equaliser was the first passive equaliser on the market. Upon its introduction, it changed the recording world forever, offering a new way to manipulate sound. The fact that Pultec equalisers in one form or another are still in use today, is extraordinary.

Released in 1955

Pultec MEQ-5 Mid-Range Equaliser

The Pultec MEQ-5 provides fine control over the “power region” (300 Hz to 5000 Hz), where most audio energy is focused and the ear is highly sensitive. Smooth handling of this range is crucial, as minor acoustic or equipment resonances can greatly affect sound clarity and listenability.

Released in 1961

Pultec EQP-1A Program Equaliser

The Pultec EQP-1A is a classic equaliser known for its warm, smooth sound, achieved through a unique design that allows simultaneous frequency boosting and cutting. Introduced in 1961, its tube-driven, passive circuitry adds depth and clarity, making it a favourite for enhancing bass and airy highs. Its “Pultec sound” remains a staple in studios for its natural, musical character.

Released in 1962

Lang PEQ-2 Program Equaliser

The Lang PEQ-2 Program Equaliser, released in the mid-20th century, was a groundbreaking tool for audio professionals, offering precise tonal shaping and reliability. Featuring non-drift components, high-Q toroidal coils, and a hermetically sealed design, it delivered low noise, low power consumption, and unmatched durability. Its versatile features, including multi-position frequency selectors, adjustable gain, and balanced/unbalanced operation, made it ideal for studios and broadcasts. A hallmark of innovation, the Lang PEQ-2 remains a revered piece of audio history, influencing modern equaliser designs.

Released in 1963

Altec 9063A Equaliser

The Altec 9063A is a vintage passive equaliser from the 1960s, offering precise tonal shaping with boost and attenuation options. Known for its simplicity and robust design, it remains highly sought after in the second-hand market for mixing and mastering applications.

Released in 1970

Urei 565 Filter Set

The Urei 565 Filter Set introduces to the recording studio and motion picture sound department an effective tool for ‘saving’ problem tracks, and for creating innovative special effects.

Released in 1971

ITI MES-430 Parametric Equaliser

The ITI MES-430 was the first commercially available parametric equaliser, a design once thought impossible to achieve, created by the brilliant George Massenburg.

Released in 1980

360 Systems Model 2800 Programmable Equaliser

The 360 Systems Model 2800 Programmable Equaliser was a fairly unique product at the time of its release in 1980, with its tactile controls and programmability. Using a Z-80 microprocessor and CMOS memory storage, the 360 Systems Model 2800 Programmable Equaliser was able to store up to 28 user created EQ curves.

Released in 1984

Ibanez MSP1000 Multi Signal Processor

The Ibanez MSP1000 is a versatile processor with a compressor/limiter, graphic EQ, and notch filter. It offers precise control, eliminating feedback and shaping sound without affecting quality.

Released in 1985

Boss RGE-10 Graphic Equaliser

The Boss RGE-10 Graphic Equaliser from 1985 provides fine tonal compensation with 10-Band Graphic Equaliser.

Equalisers