Aguilar Tone Hammer Bass Effect Pedal, DI with Ground Lift Switch and Pre/Post Switch, Unbalanced Output can drive a Power Amp, Enhanced Drive Circuit with dedicated Control and Footswitch, Cut and Boost of Treble, Mid and Bass Frequencies, Fully sweepable Midrange Frequencies, Powered by 18v power supply (not included), Inputs: 6,35mm Jack/3,5mm Aux In;Outputs: 6,35mm Jack/XLR (nominal Output –14 dB balanced)/3,5mm Headphone Out, EQ: Bass +/- 18 dB @ 40 Hz/Mid +/- 17 dB @ 180 Hz to 1 kHz/Treble +/- 18 dB @ 4 kHz