Electro Harmonix Bass Micro SynthThe Bass Micro Synthesizer has the same feature set as the Micro Synthesizer, but includes a trigger and filter sweep range especially tailored for bass guitar. The same fat analog synth textures give your bass a whole new range of possibilities: from percussive stabs to backwards sounding bowed sounds. True bypass All analog design Design optimized for bass guitar 3 pole analog resonant filter 4 Voice mixer section mixes: sub octave, original, octave