The MOEN Uni -Comp Compressor features an ultra fast response to signal, by accenting any weak signals and attenuates loud ones to make chords come alive and really pop. I have had compressors that seem to simply compress by "dropping the volume" and along goes the tone as well. Not so here...on it's own it will really round out, elevate and accent the overall sound. Sustained notes, power chords are very attainable and balanced. Place this in- line before a favorite Distortion or Drive pedal and the Uni-Comp will push it even harder, smoother and more powerful. There is also very little background noise here on the Uni-Comp where some units push the signal too much (and push the noise). A great feature on the Uni-Comp is the Bias (EQ) Knob where you can balance the frequency response from Low to High..... you can even use it with a Bass Guitar!