Radial Bassbone OD Bass Preamp & OverdriveThe Bassbone OD allows you to connect two bass guitars and sculpt the tone of each one individually, as each input has its own level and EQ controls. The EQ settings have been specifically tailored for use with basses, and include a high pass filter to roll off excessive low end, along with a selectable center frequency for the Mid EQ boost cut. Input A features a PZB booster designed for use with upright basses that employ a piezo transducer, while