Nobody buys a graphic EQ because it's fun. You buy one because something's broken and you're done fighting it, and MXR's Ten Band EQ platform is the box serious players reach for when that moment hits. Les Claypool, Rancid's Matt Freeman, and Rage Against the Machine's Tim Commerford have all run versions of this EQ for exactly that reason, corrective tone work, not decoration.

Ten sliders, 31.25Hz up to 16kHz, each good for ±12dB of cut or boost, plus separate Volume and Gain sliders so cutting a frequency doesn't tank your output. Metal and high-gain players park this in an effects loop to scoop mids after the amp's gain stage, which works better than fighting the front end. Gigging players use it to kill a boomy room or a harsh stage in seconds, no amp-knob gymnastics required. This thing earns its spot on a board by solving a problem, not by looking cool next to your fuzz.

This is the black M-108, the version that came after Dunlop took the reins at MXR, sitting between the original blue 70s unit and today's silver M108S. It's buffered bypass, not true bypass, and it's got one output instead of two. If you're running this the way it's actually meant to be run, parked on always, set once and left alone, that distinction never once comes up.

Runs on 18V DC for full headroom.

USED, VERY GOOD condition. No Velcro on the back.