The best compression and sustain pedals for guitar and bass don't so much add an effect as they make you realize how much better your tone is with one of these little babies around. From industry standards like the Boss CS-1 and MXR Bass Compressor to newcomer boutique breakouts like the JHS Pulp n' Peel or Keeley 2-Knob Compressor, all the best options are here on Reverb.