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.