Wampler Compulsion Drive reimagines the classic OCD circuit with rich, amp-like tone, 3-band EQ, dual clipping modes, and boutique versatility. Pure dynamic distortion power.
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Earn rewards every time you shop at AMS. You'll collect points on eligible purchases that turn into promotional savings on future gear, with points typically available several days after your order ships. All you need is a free AMS account — no credit card, financing, or payment plan required.
The more you shop, the more you earn. Create a free account and start earning from your very first eligible purchase. Rewards are applied as a discount on future eligible purchases.
Earn points on eligible purchases with AMS Rewards and turn them into savings on future orders, no credit card required. You can apply points at checkout once they’re available.
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0% Interest
Payment Plan
Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.
Non Factory Sealed are items that have been opened but are in perfect physical condition such as customer returns, open box for product photos/videos, demo stock, etc. They have been carefully inspected and repacked by qualified AMS employees to help ensure your satisfaction, allowing you to get great gear at a discounted price. They include all components, manuals and the full Manufacturer's warranty unless otherwise stated, along with the AMS 45-day Money-Back Guarantee. Special offers, promotions and rebates may not apply. The following manufacturers do not offer a warranty on Non-Factory Sealed items: Casio, Ampeg, Avalon, Chauvet, Electro-Voice, Ibanez, Mackie, Martin, Peavey
The Compulsion Drive (TCD) represents Brian Wampler’s dedicated reimagining of one of the most celebrated distortion circuits of the last two decades. While the original inspiration for this pedal is legendary for its touch sensitivity and open, amp-like character, the TCD takes that foundation and addresses its most common limitations.
By combining the raw, gritty texture of the classic design with Wampler’s comprehensive tone-sculpting tools, this pedal offers a versatile solution for players seeking everything from a clean boost to a full-stack roar. It is not simply a clone; it is a refined instrument designed to integrate seamlessly with your existing rig.
A Modern Standard, Refined
The Compulsion Drive addresses the specific needs of modern guitarists by expanding on the capabilities of the circuit that inspired it. Where traditional versions of this circuit often relied on a single tone knob, the TCD provides a level of control that allows it to adapt to any amplifier or guitar combination.
Comprehensive 3-Band EQ: The TCD features an active three-band EQ (Bass, Mids, Treble), solving the common issue of the original circuit being too dark or too piercing with certain amps. You can cut the mids for a scooped rhythm sound or push them to cut through a dense mix with ease.
Dual-Voicing Mode Switch: A front-panel toggle switch offers two distinct gain structures. The "Down" position delivers traditional, open drive tones, while the "Up" position engages cascaded MOSFET gain stages for a thicker, more compressed, and tube-like saturation.
Dynamic Touch: True to its "amp-in-a-box" heritage, the TCD breathes with your playing. Roll back your guitar’s volume knob and watch the grit melt into a chimey clean, maintaining crisp articulation even when the gain is dialed down.
Boutique Customization Under the Hood
While the exterior controls offer immediate versatility, Wampler has engineered the TCD with hidden depths for the discerning tone chaser. Inside the enclosure, you will find additional options that allow you to fine-tune the pedal’s fundamental response to match your playing style.
Internal "Fat" Switch: This DIP switch engages a low-end boost, adding warmth and body to the signal. This is particularly useful for single-coil pickups that need a thicker sonic foundation.
Internal "Diode" Switch: This setting alters the clipping profile by introducing an additional diode into the circuit. The result is a tighter, more saturated distortion character ideal for heavier genres or singing leads.
High-Headroom Performance: The TCD operates anywhere between 9V and 18V DC. Running the pedal at 18V significantly increases internal headroom, providing a punchier, clearer transient response and less compression.
Professional Reliability and Construction
Designed for the rigors of touring and professional studio work, the Compulsion Drive is built to ensure consistent performance night after night. It reflects Wampler’s commitment to quality manufacturing and functional design.
Made in the USA: Like all Wampler pedals, the TCD is hand-built in the United States using high-quality components for superior sound and reliability.
Pedalboard-Friendly: Top-mounted input and output jacks save space and keep your pedalboard neat and organized.
Durable Design: The rugged metal chassis, finished in a premium sparkle platinum coating, is built to withstand heavy use while protecting the precision circuitry inside.
The Definitive Evolution of a Classic
The Wampler The Compulsion Drive is an essential tool for players who demand the organic feel of a vintage drive pedal but require the precision and adaptability of modern equipment. Whether you’re boosting a dirty amp or creating a complete drive sound on a clean platform, the TCD delivers the legendary growl you expect with the control you need.
Wampler The Compulsion Drive Features:
Built in the U.S.A. with high-grade components
Based on a legendary distortion circuit, modified for enhanced versatility
Independent 3-Band EQ (Bass, Mids, Treble) for precise tonal shaping
Mode switch selects between Traditional or Cascaded MOSFET clipping
Internal DIP switches for "Fat" (low-end boost) and "Diode" (saturation profile)
Top-mounted jacks for efficient pedalboard layout
Operates on 9V to 18V DC (20mA at 9V, 25mA at 18V)