The Bartolini HR-4.6AP/918 prewired EQ harness saves the time and aggravation of wiring a preamp and pots into your instrument. The HR-4.6AP/918 features Bartolini's industry leading NTMB-918F 3-Band Preamp and premium audio-quality potentiometers with smooth control and ready for years of rugged use.
The HR-4.6AP/918 uses a 3-band EQ and preamp. Includes one Volume control with Active/Passive push-pull switch; one Blend control; one Treble/Bass concentric stacked control; and a push-pull Midrange control with two frequencies (high/low). Includes 2nd battery clip (18V option), wiring instructions, black ring & center knobs for tone stack.