The MXR M87 Bass Compressor is a studio-grade compressor pedal designed specifically for bass guitar, delivering transparent, musical dynamic control that evens out the playing signal without squashing the natural tone of the instrument. The pedal features a comprehensive control set with attack, release, ratio, input, and output knobs, giving players the same level of adjustment found on rack-mounted studio compressors. A multi-LED gain reduction meter provides real-time visual feedback on how much compression is being applied, an invaluable feature for dialing in precise settings on stage or in the studio. The compression character is clean and transparent, taming peaks and evening out fingerstyle dynamics without adding unwanted coloration or noise. The attack and release controls allow everything from fast, percussive limiting that adds snap and punch to slower, more transparent leveling that gently smooths out the overall dynamics. The constant headroom technology provides 18 volts of internal headroom from a standard 9-volt power supply, ensuring clean, undistorted performance even with hot active bass signals. Build quality is robust in the standard MXR compact housing. The M87 is ideal for professional bass players, session musicians, and live performers who need reliable, studio-quality compression in a pedalboard-friendly format. The five-knob control set requires some understanding of compression parameters to use effectively, which may challenge players unfamiliar with compressor operation.

Effects Pedals

A studio-grade bass compressor with full attack, release, ratio, input, and output controls plus LED gain reduction meter, delivering transparent dynamic control with 18V internal headroom.