Check the listing for details. Keeley Compressor Plus LTD 4-Knob Compressor Pedal Sweetwater Exclusive. Condition: New. Listed at 149.00 USD. Players Made Requests, and Keeley Listened Keeley's compressor pedals have gathered worldwide acclaim, and the Keeley Compressor Plus pedal continues the trend by incorporating player-requested features. For instance, the Blend control allows you to bring in some of your dry signal along with the compressed signal for the best of both worlds — dynamic and fatter at the same time. A much-requested Tone control allows you to fine-tune the tone appropriately for any guitar. And the simplified Attack switch makes it faster to dial in a great sound. Whether you want to tame the peaks on a plucky Tele or simply want to fatten up your tone with any guitar, Sweetwater can highly recommend the Keeley Compressor Plus pedal.