MXR Phase 90 50th-anniversary Pedal Nobels Use the COMP knob to

Use the COMP knob to lay the squeeze down and the ATK knob to go from bouncy to tight compression

It solves an annoying problem that people have complained about for years

The Fundamental Phaser is a versatile digital emulation of a classic phaser

A more modern and stylish variation of our other Multiacs

MXR Phase 90 50th-anniversary Pedal Nobels Use the COMP knob toJoin us as we celebrate that legacy with a special edition 50th anniversary finishthis pedal is worthy of a privileged place in your finest display case, but itll fit perfectly on your pedalboard, too. This pedal is powered by a single 9 volt battery (remove bottom plate to install), a 9 volt AC adapter such as the Dunlop ECB003 ECB003EU, or an MXR Brick Series power supply. 50 years of 90. Released in 1972 as MXRs first offering, the Phase 90