ITEM NAME:Preamp 3 Band Equalizer EQ Harness Guitar Bass Tone Control System for Acti N2I9 Preamp 3 Band Equalizer EQ Harness Guitar Bass Tone Control System for Acti N2I9 100% Brand new,never used Active Preamp 3 Band Equalizer EQ Harness Guitar Bass Tone Control System-III five individual potentiometers Four of them: Middle,Treble,Volume & Bass Bass guitar tone controls for active pickups Bass/midrange/treble,master volume Material: ABS color: As shown Input Impedance: 20MOhm Frequency Response: 20Hz~20KHz Bass: +/-12dB at 85Hz Middle: +/-12dB at 800Hz Treble: +/-12dB at 7KHz Output jack Power 9V battery not included Applications: Electric guitar,bass and piezo equipped instruments wiring diagram is included Package Includes: 1* pickup main part 5* potentiometer gasket 5* potentiometer nut 1* socket gasket 1* socket nut 1* battery box 2* screws Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.