Wampler Pedals has just unveiled the Wampler TCD (The Compulsion Drive), a potent new overdrive/distortion pedal that takes a legendary American boutique circuit and pushes it toward unparalleled tonal versatility. Marketed to players who are “OCD about their drive tones,” the TCD aims to deliver the classic roar and touch sensitivity of the original while adding refined modern sculpting options.
Four Classic Tones in One Pedal
At the core of the TCD’s expanded functionality are internal DIP switches that unlock a total of four classic circuit variations within a single enclosure. While the TCD is a modded iteration of a well-known design—not an original circuit—Wampler has heavily modified it for maximum sonic flexibility.
The customisation comes via two internal “set-and-forget” switches:
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Fat Switch: Instantly introduces deep low-end warmth, building a thicker, more robust foundation for the drive tone.
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Diode Switch: Adds an extra clipping diode, shifting the gain profile for a tighter, more saturated distortion.
Note: While these internal switches offer “boutique-level customisation,” some players may find accessing them for live or studio adjustments cumbersome, preferring easily accessible external switches (like those found on some Chase Bliss designs).

Dual Clipping Modes and Full EQ Control
Beyond the internal customisation, the TCD features a Mode switch on the pedal’s front face, allowing users to select between two distinct clipping flavors:
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Down Position (Traditional): Provides the pedal’s standard gain structure.
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Up Position (Harder Hitting): Engages cascaded MOSFET gain stages, which Wampler states delivers a “harder-hitting and more tube-like sound” for a more aggressive feel.
The pedal also features a typical, yet powerful, set of external controls:
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Three-band EQ (Bass, Mids, Treble): Allows for precision tonal sculpting.
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Level and Gain: Standard controls for volume and saturation amount.
Unmistakable Roar and Dynamic Touch
The TCD is engineered to deliver a broad spectrum of sounds, from articulate crunch and harmonically rich saturation to dynamic, soaring lead tones. Its primary sonic characteristics remain the signature roar, sparkle, and dynamic touch sensitivity of the circuit it is based on.
With its ability to run on a flexible 9-18 volt power supply and featuring top-mounted jacks for easy pedalboard integration, the Wampler TCD is positioned as a highly versatile and professional-grade drive solution.
TCD Specs at a Glance
| Feature | Description |
| Circuit | Modded version of a legendary American boutique drive. |
| Circuit Variations | 4 (via internal Fat & Diode DIP switches). |
| Mode Switch | Traditional Clipping vs. Cascaded MOSFET Gain. |
| Controls | Level, Gain, Bass, Mids, Treble, Mode Switch. |
| Power | 9-18V (Suits most pedalboard setups). |
| Jacks | Top-mounted. |

Conclusion
The Wampler TCD: The Compulsion Drive offers an impressive amount of tonal variation at a very reasonable price point, making it a strong contender for guitarists seeking an all-in-one drive workhorse with boutique-level flexibility.
Price & Availability
The Wampler TCD is available now at the following authorized dealers worldwide.
Available at Andertons, priced £199.99
More Information
#Wampler TCD #overdrive pedal #Fulltone OCDÂ
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