General
The MXR M101 Phase 90 is a classic guitar pedal that produces a warm, rich analogue phaser effect. The M101 is renowned for its high sound quality and reliability and was used by none other than Eddie Van Halen to create swirling, spacious guitar sounds. A phaser combines the sound of a guitar with a copy that is placed before and after the original signal. The phase differences that this creates ensure a alternating thin and full, deep sound. You can adjust the speed of this pulsating effect with the knob on the 101.
Using the M101
The M 101 - which is also perfectly applicable to vocals, key instruments and bass guitars - can produce a surprising amount of effects. You can experiment with the pulse's speed, to make it move in unison with the beat of the music. Another interesting effect can be obtained by giving the phaser its own tempo! Low settings allow for a pleasant, wave-like effect, while higher speeds give your solos a delectable drive. Put a recorded guitar section through the pedal while adjusting the speed live on stage for an amazing effect!