4 Knob + 1 Switch Control Layout

Pre-wired harnesses include battery clips and an output jack for quick installation. All of the pots are grounded with a wire that can be connected to the cavity shield or simply cut away if not needed in your installation. Knobs are a personal choice, so they are not included with the harness - except where there is a stacked (concentric) pot, we include a ring knob and center knob since they are not as common.

3 Band NTMB+F Preamp - HR-4.7

$260.00$270.00

4 Pots, 1 toggle: (Volume) (Blend) (Mid) [Mid Toggle] (Treble/Bass Stack) - HR-4.7 - Active or Active/Passive
The NTMB+F preamp has wide boost and cut range for aggressive control of bass, mid, and treble. The treble frequency is set high for maximum available brightness. Adjustable gain lets you boost the output by 4X.
3 Band NTMB+FL Preamp - HR-4.7FL

$260.00$270.00

4 Pots, 1 toggle: (Volume) (Blend) (Mid) [Mid Toggle] (Treble/Bass Stack) - HR-4.7FL - Active or Active/Passive
NTMB+FL has refined boost and cut range for precise control of bass, mid, and treble. The treble frequency is set for classic, warm highs. Adjustable gain lets you boost the output by 4X.
3 Band TCT Preamp - TCT-4.7

$270.00$280.00

4 Pots, 1 toggle: (Volume) (Blend) (Mid) [Mid Toggle] (Treble/Bass Stack) - TCT-4.7 - Active or Active/Passive
The TCT preamp has a voice of its own, providing vintage color to your sound. It has a mid-frequency notch at 300Hz for legendary slap tone. TCT is the original Bartolini preamp with inter-dependent controls, so it is a tone shaping preamp rather than a strict EQ and requires expertise.
3 Band XTCT Preamp - XTCT-4.7

$270.00$280.00

4 Pots, 1 toggle: (Volume) (Blend) (Mid) [Mid Toggle] (Treble/Bass Stack) - XTCT-4.7 - Active or Active/Passive
The XTCT preamp has a voice of its own, providing vintage color to your sound. It has a mid frequency notch at 500Hz for slap tone with more bass. XTCT is based on the original TCT preamp with inter-dependent controls, so it is a tone shaping preamp rather than a strict EQ and requires expertise.