The MXR M85 Bass Distortion is an electric bass distortion pedal whose analogue circuit was developed in collaboration with Ryan Ratajski of Fuzzrocius Pedals . With two clipping modes , this handy effects pedal delivers different versions of its poisonous bass sound, which is ideal for rock and metal. With active silicon diodes , the MXR M85 Bass Distortion delivers a biting aggressiveness with slight compression, whereas LEDs promise a more open sound with a little more gain. In addition to the Distortion control for adjusting the amount of distortion, the pedal also features a Tone control that determines the amount of treble in the sound. To maintain pressure and definition even at maximum distortion, the MXR M85 Bass Distortion's Dry and Wet controls allow the effect and clean signal to be mixed steplessly.