The 12 Position Rippah Booster Wah is a booster wah pedal made by Wilson Effects. Its defining feature is a 12 position control, which gives the wah a stepped set of voicings rather than a single fixed tone, and it pairs the wah circuit with a boost function, as the name suggests1. Wilson Effects lists it at $185.00 USD as of October 19, 20261.
What it does
The pedal's 12 position control is the headline feature: instead of one wah voice, the player can select among twelve settings1. Wilson Effects describes the underlying circuit on the related 12 Position Wilson Wah page as building on the vintage wah design with modifications that "enhance bass response at the input, creating a thick, full-bodied sound"2. That description applies to the 12 Position Wilson Wah circuit family the Rippah Booster Wah belongs to2.
Controls
The published control set comes from the 12 Position Wilson Wah documentation, which covers the circuit's trimmers and sweep adjustment2:
| Control | What it does |
|---|---|
| Sweep Range | Adjusts the depth of the sweep. Fully clockwise maximizes the effect, fully counterclockwise minimizes it. |
| Top Trimmer (internal) | Adjusts the midrange response. |
| Bottom Trimmer (internal) | Controls the overall volume output. |
The Sweep Range control is the player-facing adjustment, while the two trimmers are internal, set with a tool rather than turned during play2.
Related versions
Wilson Effects builds this circuit in several variants, which differ mainly in the potentiometer taper used for the sweep:
- Wilson Effects 12 Position Wilson Wah, the base model whose circuit description is quoted above2
- Wilson Effects 12 Position Wilson Wah ICAR Version
- Wilson Effects Rippah Booster Wah ICAR Version
- Wilson Effects Rippah Booster Wah Smooth Taper Version
- Wilson Effects Rippah Wah, the same family without the 12 position control
Videos
Wilson Effects
Wilson Effects
Brett Kingman
Sources (2)
- 12 Position Rippah Booster Wah, Wilson Effects, 2026-10-19
- 12 Position Wilson Wah, Wilson Effects
