Sticking with the medical motif of their pedal line, here is Ashdown"s Aspirin Compressor for bass. Made to keep things tight for those of us who like control over the attack of our tones, this pedal uses a simple 3-pot configuration, the Aspirin thins the blood, so to speak making sure the flow of the SPL is consistent whilst engaged.Using the Input to drive the amount of signal, the pedal automatically processes the compression after you set the ratio. A simple output pot then allows you to set the level of signal coming from the pedal to your amp.Pedal Controls Input - Adjust input gain level Ratio - This dictates how much the volume is reduced versus how far above the threshold the signal is Output - Adjust output gain level