Used Keeley Neutrino Envelope Filter Effect Pedal

Bring your bass or guitar to life with this used Keeley Neutrino Envelope Filter in great condition, delivering funky, touch-sensitive quack and smooth auto-wah sweeps that respond to your picking dynamics. Simple, stage-ready controls let you dial in fast or slow filter action and choose different filter voicings for everything from subtle movement to bold synthy burble. Built in a compact pedal format with standard 1/4" in/out and 9V DC power.