# Two Blackout actives, two volumes, two tones, toggle

Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-blackouts-two-volumes-two-tones-toggle

Two Blackouts · Two 25K volumes · Two 25K tones · Three-way toggle

Two Blackout actives, two volumes, two tones, toggle. Transcribed from the manufacturer wiring sheet.

Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-blackouts-two-volumes-two-tones-toggle.svg (back of controls)

## Parts and values

- Neck Blackout: Neck Blackout; generic (Blackouts Active Humbucker)
- Bridge Blackout: Bridge Blackout; generic (Blackouts Active Humbucker)
- Neck volume 25K: Neck volume 25K; 25k; compatible example (EMG 25K Pot)
- Bridge volume 25K: Bridge volume 25K; 25k; compatible example (EMG 25K Pot)
- 3-way toggle: 3-way toggle; compatible example (Switchcraft 3-Way Toggle)
- Stereo output jack: Stereo output jack; compatible example (Switchcraft \#12B)
- 9V battery clip: 9V battery clip; compatible example (9V Battery Clip)
- Bridge ground: Bridge ground; generic (Bridge ground wire)
- Bridge tone 25K: Bridge tone 25K; 25k; compatible example (EMG 25K Pot)
- Neck tone 25K: Neck tone 25K; 25k; compatible example (EMG 25K Pot)
- Bridge .047 cap: Bridge .047 cap; 47nF; compatible example (Orange Drop .047µF)
- Neck .047 cap: Neck .047 cap; 47nF; compatible example (Orange Drop .047µF)

## Specific to this wiring

- Each volume wiper feeds its tone control before the toggle as drawn.
- Both pickup red leads share the battery positive junction.

## Connections

1. Neck Blackout gnd → Neck volume 25K casing (wire, bare)
2. Bridge Blackout gnd → Bridge volume 25K casing (wire, bare)
3. 3-way toggle T4 → Bridge tone 25K casing (wire, black)
4. Neck volume 25K lug1 → Neck volume 25K casing (wire, ground)
5. Bridge volume 25K lug1 → Bridge volume 25K casing (wire, ground)
6. Neck volume 25K casing → Bridge volume 25K casing (wire, ground)
7. Neck volume 25K casing → Neck tone 25K casing (wire, ground)
8. Bridge tone 25K casing → Bridge volume 25K casing (wire, ground)
9. Neck .047 cap b → Neck tone 25K casing (wire, ground)
10. Bridge .047 cap b → Bridge tone 25K casing (wire, ground)
11. Neck tone 25K casing → Stereo output jack sleeve (wire, black)
12. Bridge ground ground → Bridge tone 25K casing (wire, black)
13. Neck tone 25K lug2 → 3-way toggle T1 (wire, black)
14. Bridge tone 25K lug2 → 3-way toggle T2 (wire, black)
15. 3-way toggle T3 → Stereo output jack tip (wire, black)
16. Neck Blackout hot → Neck volume 25K lug3 (wire, white)
17. Bridge Blackout hot → Bridge volume 25K lug3 (wire, white)
18. Neck Blackout vplus → 9V battery clip vplus (wire, red)
19. Bridge Blackout vplus → 9V battery clip vplus (wire, red)
20. 9V battery clip vminus → Stereo output jack ring (wire, black)
21. Neck volume 25K lug2 → Neck tone 25K lug3 (wire, black)
22. Bridge volume 25K lug2 → Bridge tone 25K lug3 (wire, black)
23. Neck tone 25K lug1 → Neck .047 cap a (wire, black)
24. Bridge tone 25K lug1 → Bridge .047 cap a (wire, black)

## What each position does

- Always on (active): No pickup reaches the output. Source: Passive simulation is not applied to active pickups; wiring topology only.

- Active pickup gain and frequency response are not simulated.
- The catalog active buffer is approximated with seymour-duncan-blackout-humbucker terminals.

## Check before plugging in



## Source

Tinkercaster's own drawing of the Seymour Duncan diagram 2BO\_3G\_2V\_2T, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan.

See also [all wiring diagrams](<https://guitarwiring.app/wiring-diagrams/index.md>).