TS-20 is an overdrive. With it, you can both “warm up” your tube amplifier, or use it as an independent effect that retains all the characteristics of a natural warm overdrive. When used as a heater, the pedal will increase the sustain without virtually changing the character of your amp. The pedal is assembled on the most modern element base: low-noise microcircuit, high-precision resistors, electrolytic capacitors with low leakage currents. TS-20 is compatible with YERASOV SCS Pedalboard.