Description
The Compulsion Drive: Legendary Growl, Massive Punch, Zero Fluff.
The Compulsion Drive (TCD) is Brian Wampler’s obsessive re-imagining of one of the
most legendary distortion circuits in modern guitar pedal history - the Fulltone OCDtm.
Designed to deliver the unmistakable roar, sparkle, and dynamic touch sensitivity that
players crave, TCD combines raw power with refined tonal sculpting. Whether you’re chasing articulate crunch, harmonically rich saturation, or soaring lead tones, TCD puts it
all at your feet with intuitive control and Wampler’s signature attention to detail.
The Spirit of Distortion
At the heart of TCD lies a circuit that has long been celebrated for its harmonic complexity
and amp-like response. Brian Wampler has carefully refined and modernized this classic
design, ensuring that the pedal captures the essence of that coveted sound while
providing greater versatility and tonal control. The Compulsion Drive comes alive under
your fingers - cleaning up to shimmering grit when you back off, and exploding into searing
distortion when you dig in. It’s the kind of pedal that responds like an amp, and it’s already
a staple on the Wampler team’s boards.
Timeless Circuits, Total Control
The Gain control takes you anywhere from edge-of-breakup crunch to roaring full-on
distortion. Shape your tone with the powerful three-band EQ - Bass, Mids, and Treble -
giving you everything from tight, focused drive to wide-open tones brimming with magical
clarity and presence. Finally, the Level control delivers all the output you need, whether
you want to push your amp harder or sit perfectly balanced in the mix.
The Mode switch lets you choose between two distinct flavors of clipping - when down it’s
a traditional gain structure, when up it changes to a harder hitting and more tube-like
sound with cascaded MOSFET gain stages. Inside The Compulsion Drive, you’ll find even
more tone-shaping power waiting for you. A key feature of TCD is its ability to tap into
classic flavors of the original circuit it was based on. Two internal DIP switches let you
shape the pedal to your taste. The Fat switch adds deep low-end warmth for a thicker
foundation, while the Diode switch shifts the gain profile with an extra clipping diode for
tighter, more saturated distortion. These hidden options give the TCD boutique-level
customization and serious versatility under the hood.
Responsive Grit and Power
What sets The Compulsion Drive apart is its ability to feel like part of your amp rather than
just a pedal in front of it. It enhances the harmonic content of your signal, allowing chords
to shimmer with clarity and single notes to sing with sustain and definition. The pedal’s
touch sensitivity and dynamic range make it responsive to both your guitar’s volume knob
and your hands - clean up by rolling back, or dig in for searing drive without touching a
control. Pair it with other pedals and it unlocks entirely new shades of tone and harmonic
richness.
Crafted with Precision
As with every Wampler pedal, TCD is built in the U.S.A. using only the highest-quality
components. Every detail has been designed to ensure superior sound, reliability, and
performance. Whether you’re in the studio or on the stage, the Compulsion Drive is ready
to deliver night after night.
The Compulsion Drive (TCD) is more than just a distortion pedal - it’s Brian
Wampler’s tribute to one of the most iconic drive circuits ever, obsessively refined
and compulsively tweaked for today’s players.
Technical Details
• Built in the U.S.A.
• High-grade components selected for superior sound and response
• Premium sparkle platinum finish with rugged enclosure
• Independent three band EQ (Bass, Mids, Treble), Level and Gain controls
• Mode switch to dial in Tube-like clipping
• Internal DIP switches allow 4 classic circuit variations
• Includes limited 5-year warranty
• Power Draw 20mA at 9V DC and 25mA at 18V DC, do not exceed 18V DC
• Dimensions: 2.5” x 4.8” x 2.3” (64mm x 125mm x 60mm)
The following designations are not owned by or associated with Wampler Pedals, Inc. but
are instead owned by their respective owners: OCD, Fulltone
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