Super Hard On Vexter

The Super Hard On (SHO) is Zvex's legendary clean boost that started the boutique boost revolution. With a 5-megohm input impedance and up to 60 times gain, it can push any amp from subtle shimmer to aggressive overdrive without coloring your tone.

The single gain knob employs a revolutionary approach that adjusts DC bias and gain simultaneously, effectively redesigning the circuit at each setting. This explains the characteristic "crackle" when turning the knob. The circuit draws under 2mA, providing exceptional battery life.

At lower settings, the SHO provides transparent buffering and slight level boost. Push it further and clean amps break up naturally while already-driven amps reach new levels of sustain. Many players keep it always on as a tone enhancer, using their guitar's volume for dynamics.