Released in 1976

MXR Model 129 Pitch Transposer

The MXR Model 129 Pitch Transposer is a classic piece of audio equipment that was released in the late 1970s. The unit was designed to allow musicians and audio engineers to transpose the pitch of audio signals up or down by a fixed amount, ranging from one octave below to one octave above the original pitch.

Released in 1976

MXR Model 113 Digital Delay

The MXR Model 113 Digital Delay is a self-contained audio delay line which utilises sophisticated technology to achieve a new standard of professional quality. The culmination of an intensive design program, the MXR Model 113 Digital Delay is unparalleled in versatility, ease of operation, and creative application.

Released in 1976

MXR Model 126 Flanger/Doubler

For more than 30 years now, both engineers and musicians have relied upon the MXR Model 126 Flanger/Doubler as one of best-sounding bucket-brigade* flanging effects ever made. Through its signature flanging, doubling, and delay effects, the MXR Model 126 Flanger/Doubler imprints a very unique sonic signature on guitars, bass, keys, drums, or just about any source needing depth and movement.

Released in 1985

MXR 01A Digital Reverb

In 1985 it would seem MXR employed the team at ART (Applied Research & Technology) to produce a digital reverb, based on the ART 01A, and it even had ART listed as the manufacturer on the front panel.

MXR

MXR Model 129 Pitch Transposer

MXR Model 113 Digital Delay

MXR Model 126 Flanger/Doubler

MXR 01A Digital Reverb

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