Bass equalizer with frequency sweep and boost/cut controls. Control is a stacked pot, with frequency on the bottom and boost/cut on top, with a detent for flat EQ. EP Equalizers have a gentle peaking profile.EPB Bass EQSKU: EPB$39.85PriceQuantity*Add to CartSpecificationsFrequency Sweep: 25-200 Hz. Boost/Cut: ±7.5 dB. Idle Current: 0.25 mA. Board dimensions: 27.2 x 20 x 3.8 mm. Lower Pot Shaft: Round, Dia=8mm, L=8mm. Upper Pot Shaft: "D", Dia=6mm, L=10mm. Pot Bushing: M9x0.75, L=10mm. Nuts and washers included.