BOSS GEB-7 Bass Equalizer Professional Guitar Effect Pedal 7 Band Graphic EQ

Pursuing the most effective frequency band configuration for bass Terminals: Input, Output, AC adapter Equalizer: 50Hz, 120Hz, 400Hz, 500Hz, 800Hz, 4.5kHz Level control: ±15dB; Residual noise: -100dBm or less (IHF-A) External dimensions: 73(W) x 129(H) x 59(D) mm Weight: 440g