MXR® TEN BAND EQM108S The MXR Ten Band EQ lets you tune your bass or guitar rig in seconds, and it's been upgraded with noise-reduction circuitry, true bypass switching, a lightweight aluminum housing, brighter LEDs, and a second output. This pedal can be powered by the included ECB004 18-volt adapter or the DC Brick™, Iso-Brick™ and Mini Iso-Brick™ power supplies.