MXR Bass Compressor Effect Pedal - UsedLooking for a studio quality compressor that will provide you with a punchy, deep tone? Looking for a minimalist interface with exactly the controls you need and nothing more? Behold, the legendary MXR Bass Compressor. The surface of this pedal hosts release, attack, input, output, and ratio knobs as well as a gain reduction monitor. No frills, no problems! It's an ideal selection for the dynamic player who goes from a smooth, lightly compressed tone