MXR Guitar Effects

MXR Guitar Effects on Ebay
MXR effects pedals MXR, also known as MXR Innovations, was a manufacturer of guitar effects units, founded in 1973 by Keith Barr (who went on to found Alesis) and Terry Sherwood (who went on to co-found Applied Research & Technology). MXR was based in the United States in Rochester, New York. MXR Innovations, Inc. was incorporated in 1974. The MXR trademark is now owned by Jim Dunlop, which continues to produce the original effects units along with new additions to the line.

Founded in 1973, MXR Innovations entered the effects market as a pioneer with the development of tough and rugged stomp boxes, simple utilitarian designs, and small sizes. Jim Dunlop, having purchased the brand in 1987, continues MXR's traditional pedal line of original MXR classics that have come to define the brand, such as the Phase 90 and Dyna Comp, as well as modern classics like the Carbon Copy and Fullbore Metal. Dunlop has also added a line dedicated to bass effects boxes, MXR Bass Innovations, which has recently released the Bass Octave Deluxe and Bass Envelope Filter, both pedals winning Editor Awards in Bass Player Magazine, and Platinum Awards from Guitar World Magazine. The MXR Custom Shop is responsible for recreations of vintage models such as the hand-wired Phase 45, as well as doing limited runs of pedals featuring premium components and highly modified designs such as the new Custom Comp.

The first MXR effects pedal was the M-101 MXR Phase 90. A milder version of the effect was also released, the MXR Phase 45, and a programmable version, the Phase 100. A 9 volt battery was used to powered these effects and could give them up to 500 hours of power. The input was directly connected to the circuit's power supply. Like many other pedals of the day, MXR pedals (prior to 1981) did not have LED's, A/C adaptor jacks, or true bypass switching. Over the years, there were two distinct periods that the reference series pedals went through.


6 Band EQ
6 Band EQ M-109 Reissue
10 Band EQ M-108
Analog Delay
Black Label Chorus
Blue Box
Blue Box M-103 Reissue
Classic 108 Fuzz
Commande Overdrive
Commande Phaser
Commande Preamp
Commande Stereo Chorus
Commande Stereo Flanger
Commande Sustain
Commande Time Delay
Custom Comp

Distortion +
Distortion + Reissue
Distortion II
Distortion III
Double Shot Distortion M-151
Dyna Comp
Dyna Comp Series 2000
Dyna Comp M-102 Reissue
El Grande Bass Fuzz
Envelope Filter
Fullbore Metal M-116
GT-OD Distortion Overdrive
KFK 10-Band Equalizer
Loop Selector
Micro Amp M-133

Micro Chorus M-148
Micro Flanger
Noise Gate Line Driver
Phase 45
Phase 90
Phase 90 M-101 Reissue
Phase 100
Phaser Series 2000
Pitch Transposer
Power Converter
Smart Gate M-135
Stereo Chorus M-134
Stereo Chorus Series 2000
Stereo Flanger Series 2000
Super Comp M-132