Zvex Woolly Mammoth Bass Fuzz uni vibe or use its effects loop

or use its effects loop to invent novel synth patches

A fixed filter effect is possible by turning the depth knob down all the way

setting the volumes below 3

IN USE The RS-20 incorporates a high quality AC-coupled ring modulator that sounds somewhat different to the RMs in synthesisers such as the ARP2600

but to get the sound I heard when I designed it

Zvex Woolly Mammoth Bass Fuzz uni vibe or use its effects loopA sensitive and touchy bass fuzz with tremendous bottom end and a beautiful harmonic structure that sounds blistering with a guitar, too. The harmonic structure can be radically altered using the "PINCH" knob. It adjusts the pulse width of the waveform. In the leftmost position, the waveshape is quite symmetrical which produces a smooth creamy sound. Turning it up slightly introduces lovely intermodulation distortion. Turning it clockwise narrows the