The ModTone MT-CR Compressor provides great sustain without touching your original signal and it also reduces louder signals while boosting lower ones. The ModTone MT-CR features onboard Level, Sustain and Attack controls in a simple three knob configuration, making this a very versatile pedal for a wide range of sonic needs. All players, regardless of style or choice of instrument, can benefit from having a studio quality compressor in their stable of effects.