The MXR M159 Tremolo produces the same lush tremolo sound as the standard Dunlop TS1 but in a smaller, pedal board friendly size. With warm analog circuitry and 18-volt operation, the M159 Tremolo provides a rich and vibrant sound with low noise due to its high headroom. The versatile inputs and outputs allow you to produce a hypnotic, pulsing mono tremolo thru one amp or go to stereo mode for a huge spacious tone.