The Bartolini HR-3.3AP/918 prewired EQ harness saves the time and aggravation of wiring your preamp and pots into your bass. The HR-3.3AP/918 features Bartolini's industry leading NTBT-918 2-Band Preamp and premium audio-quality potentiometers with smooth control and ready for years of rugged use.
The HR-3.3AP/918 uses a 2-band EQ and preamp. Includes one Volume control with Active/Passive push-pull switch; one Blend control; and one concentric stacked control for Bass/Treble. Includes 2nd battery clip (18V option), wiring instructions, black ring & center knobs for tone stack.