Bartolini 3-Band Preamp/EQ Prewired Harness-3 Knobs

Bartolini's world famous 3-band EQ/preamp system. (HR-3.4) with 2-way midrange selector. Designed for instruments with 2 pickups and 3 control holes. Perfect for Jazz bass style bass guitars. Prewired controls include: stacked neck and bridge volume controls, midrange control and stacked bass and treble controls. Midrange control has a push/pull switch which selects either 250Hz or 800Hz as the midrange center frequency. Choose optional Active/Passive mini toggle switch (HR-3.4ap) when ordering.