2b-4a – Volume (PP active/passive), Volume, Treble, Bass
2b-4b – Volume (PP active/passive), Blend, Treble, Bass
2b-4c – Volume (PP active/passive), Blend, Tone, Treble/Bass Stack
2b-3a – Volume (PP active/passive), Treble, Bass
2b-3b – Volume (PP active/passive), Blend, Treble/Bass Stack
2b-MM - Volume - Treble - Bass
2b+ Master - Volume (PP active/passive), Volume, Treble, Bass, Tone
2b+4a – Volume (PP active/passive), Volume, Treble, Bass
2b+4b – Volume (PP active/passive), Blend, Treble, Bass
2b+4c – Volume (PP active/passive), Blend, Tone, Treble/Bass Stack
2b+3a – Volume (PP active/passive), Treble, Bass
2b+3b – Volume (PP active/passive), Blend, Treble/Bass Stack
3b-3 – Volume (PP active/passive), Mid (PP frequency select), Treble/Bass Stack
3b-4a – Volume/Volume Stack, Tone (PP active/passive), Mid (PP frequency select), Treble/Bass Stack
3b-4b – Volume/Tone Stack, Blend, Mid (PP frequency select), Treble/Bass Stack
3b-4b AP – Volume/Tone Stack, Blend, Mid (PP frequency select), Treble/Bass Stack, Active/Passive Switch
3b-5a – Volume (PP active/passive), Blend, Treble, Mid (PP frequency select), Bass
3b-5b – Volume (PP active/passive), Blend, Tone, Mid (PP frequency select), Treble/Bass Stack
JC-3B (Two Pickups) – Volume (pull passive), Blend, Treble (push/pull neck pickup - series down, parallel up), Mids (1kHz down, pull up for 400Hz), Bass (push/pull bridge pickup - series down, parallel up)
JC-3B (One Pickup) - Volume (pull passive), Treble (push/pull neck pickup - series down, parallel up), Mids (1kHz down, pull up for 400Hz), Bass (push/pull bridge pickup - series down, parallel up)
3B Fixed Mid - For players who do not want a mid selector switch. There are several frequencies to fix the mid at.
Blend Pots! This diagram explains how a blend pot works and how to make sure you have yours wired correctly, because they do not all work the same…
Basic 3B Basic module with pots
Kitchen Sink 3B installation. This shows the preamp with all the bells and whistles including an active passive push pull on the volume and 2 mid frequencies on a push pull. It also has the chart of the mid frequency capacitors and shows how to set up any 2 frequencies you may want on the switch. We do not sell the preamp prewired in this manner, but for those who want to have all the options we offer this diagram.
3B-4a 3 band bass preamp with volume/volume stack, tone(pull passive), mid(pull frequency switch), and treble/bass stack
2B-4b 2 band bass preamp with volume(pull passive), blend, treble, and bass
VBT-3B-a – VolumePP, Blend, Tone, Treble, MidPP, Bass
VBT-3B – Volume, Blend, Tone, Treble, MidPP, Bass
VBT-3B-ab – VolumePP, Blend, Tone, Treble, Mid, Bass
VBT-3B-ab_midchart– VolumePP, Blend, Tone, Treble, MidPP, Bass (includes mid frequency selection chart.
3B-4b – Volume/Tone Stack, Blend, Treble, MidPP, Bass
3B-5a – VolumePP, Blend, Treble, MidPP, Bass
