Allows delicate controls for correction with EQ control, volume and gain Amplifier in the field, cabinet, venues and deterioration of strings... Bassists with simple sound must always be accompanied with changes in the situation. The Rich Tone Bass Preamp is sure to get you close to your ideal sound in the front of D.I. Gain control transforms naturally like a vintage amplifier, and the "comp feel" of peaks will be powerful when mixed into the band. It can also be used as a drive pedal if the gain is full up. The Rich Tone Bass Preamp is to upgrade your original taste to a superior sound without changing the basic sound characters.