One Control Crimson Red Bass Preamp Thank you for viewing. This product is a compact preamp effector mainly for electric bass. It can create a warm tone like that of a wood bass or upright bass, making it an effector recommended for jazz players and those who play calm music. It was mainly used indoors, but there are some scratches on the surface due to use. We have prepared a 360-degree photo, so please check it before purchasing. Operation has been confirmed, and there is no particular scratchiness. The rubber feet are unused. The box is also included. One Control Crimson Red Bass Preamp - Brand: One Control - Model Name: Crimson Red Bass Preamp - Design: BJF Design - Control Knobs: Volume, Brilliance, Gain - Color: Pink