The Warhead Flanger Doubler revives one of Dimebag Darrell's most essential pieces of gear: the always-on Flanger/Doubler that took those razor-sharp Pantera riffs and turned 'em into massive, layered walls of pure aggression.

“A Flanger/Doubler was used in the main ‘wet’ head loop 100 percent of the time.” — Grady Champion

Grady rode that original unit live every night, fine-tuning it mid-show: “sometimes just to fuck around and make Dime laugh while keeping the tone locked in tight.”

This isn't a lazy clone or a digital imitation. It's a two-year labor of love, built from the ground up as an analog reconstruction of the original bucket-brigade circuitry, plus new tricks that make it even more useful than the original. The same warm, organic thickness that defined Cowboys From Hell and beyond.

Watch Grady demonstrate the technique

How Grady manually blended the Doubler into Dime's live sound, often for just a few seconds at a time.

A complete Dime wet/dry rig in one box

A built-in 40W power amp (the same one inside the Warhead Mini) drives the wet side directly. If you already have a guitar amp and a stereo cabinet with separate speaker sections, the Flanger Doubler is all you need. No second amp, splitter or extra cabinet required.

Expression control

A dedicated expression pedal output on the Mix knob lets you blend wet/dry or delay time live with your foot, just like Grady did for Dime, often for just a few seconds at a time.

FOH-grade high-pass filter

Developed and fine-tuned at the request of Eddie Mapp, Pantera's FOH engineer. It keeps the low end tight and powerful while applying modulation mainly to the higher frequencies.

Authentic vintage analog

True analog bucket-brigade delay lines, running at the original MXR's operating voltage to keep its headroom. Real optocoupler-based noise suppression, unlike modern reissues that use a VCA.

Professional rig integration

With Kill Dry, Ground Lift and Direct Out, the Flanger Doubler is ready for virtually any professional setup, from traditional guitar rigs to complex wet/dry systems, with maximum flexibility and seamless integration. It runs in front of the amp or in the effects loop (Dime ran his in the loop), with switchable true or buffered bypass.

Key specs

• Circuit: true analog BBD
• Modes: Flanger / Doubler
• Power amp: 40W Class D (4Ω / 8Ω)
• Bypass: true or buffered
• Placement: front of amp or FX loop
• Expression: output on Mix
• Format: ½ rack, 940 g / 33 oz
• Power: PSU included