The Switchazel is an A/B or A+B switching box with buffered Low Imp Output, a 9db clean, linear, adjustable boost, and tuner out. Whether you need a number or two more clean headroom, or to go from 4 to 8 on the volume knob, or 6 to over-the-top compressed, sustaining overdrive, all is available with the adjustable 9db clean, linear "Lift" feature.