Double Crunch Transparent Overdrive

Two Crunch pedals. One enclosure. Three modes. The Double Crunch puts a complete Original Crunch and a complete Extra Crunch in one box—two independent circuits sharing only the power supply. Engage Original only, Extra only, or both for the same sound as stacking Extra Crunch in front of Original Crunch.

Extra Crunch (right side); Original Crunch (left side). When both are engaged, stock routing is Extra → Original.

Transparent overdrive for working guitarists and bassists who want multiple voicings on stage and in sessions—without giving up two spots on the board.

▶ Watch Crunch demos | Reviews & press →

No dedicated Double Crunch demo yet—these videos feature the same Original Crunch circuits built into this pedal.

Why pros choose the Double Crunch

• Two complete circuits — not a dual-channel gimmick; each side is a full Crunch Transparent Overdrive
• Three footswitch modes — Original only, Extra Crunch only, or both engaged
• Stack preset built in — both on = Extra Crunch → Original Crunch in series (same as two singles stacked, right to left on your board)
• Your tone stays yours — same transparent, amp-like clipping as the single Crunch
• Board-friendly — top-mounted jacks, ~15–20 mA draw, depending on LED brightness
• Hand-soldered in British Columbia, Canada — high-grade components, true bypass on each circuit

Three modes — how the signal flows

Right side (Extra Crunch): Black knobs and blue LED—~30% more gain than Original. 

Left side (Original): Cream knobs and Amber LED. 

Stock routing when both are on: Extra Crunch → Original Crunch.

Custom routing by special order: Yes, we can build alternate paths—Original → Extra, Original → Original, or Extra → Extra. Special Orders →

Single Crunch or Double Crunch?

Trusted by working players

“This is a ridiculously good pedal!”
— Paul Pigat on the Double Crunch Transparent Overdrive

“The Extra Crunch is an incredibly open and airy sounding overdrive. It really keeps your original sound intact while giving you a bit of amp-like grind. Killer pedal!”
— Joey Landreth, The Bros. Landreth

“Love love love my double crunch! sounds so nice in my Friedman Dirty Shirley!”
— Marc Parent, April Wine

“The number one pedal on my board. Absolutely great for getting a fantastic blues, roots, or low-gain rhythm or lead tone without coloring the tone of my guitar or amp. Just an invaluable tone tool for the professional guitarist.”
— Michael Schau, blues/rock session player

“Run the Crunch to taste and experience a ‘super transparent’ overdrive whose overtones and harmonics are musically focused. My first test strum gave me goose bumps—it felt so real and unprocessed.”
— Anthony DellaCroce, The Headpins

More reviews & press →

Video demos

These demos feature the same Original and Extra Crunch circuits inside the Double Crunch. A dedicated Double Crunch demo is coming soon.

▶ All McGregor Pedals demos →

How to use it

• Original side only (left): Start Volume, Tone, and Gain at 1 o'clock on the left side. Bring up Gain for crunch; Volume to push your amp's front end.
• Extra Crunch side only (right): Same starting point on the right side (black knobs). More gain headroom when you want a dirtier transparent drive.
• Both engaged (stack): Dial each side to taste—signal runs Extra (right) → Original (left), same as two Crunch pedals on a right-to-left board. Great for more saturation while keeping your core tone.
• Switch voicings live: Use one footswitch for subtle edge-of-breakup, the other for more push—no reaching for a second pedal. Both for even more.
• After fuzz: Place your fuzz before the Double Crunch with both sides on you get a fuzz-into-a-cranked-amp feel at manageable volume—especially sweet with The Classic Fuzz.
• LED brightness: Side trim pot on each circuit (jeweler's screwdriver)—from dark stage to bright sun.

Specifications

• Type: Dual-circuit transparent overdrive (guitar & bass)—Original Crunch (left) + Extra Crunch (right)
• Layout: Extra on the right, Original on the left
• Controls: Volume, Tone, Gain per side
• Footswitches: One per circuit—independent bypass; both may be engaged simultaneously
• Stack behavior (stock): Both on = Extra Crunch (right) → Original Crunch (left) in series
• Custom routing available by special order: Original → Extra, Original → Original, or Extra → Extra
• Bypass: True bypass on each circuit (high-quality Alpha stomp switches)
• Power: 9 V DC, center-negative 2.1 × 5.5 mm (Boss-style). 15–20 mA depending on LED settings
• Dimensions: 4.7" x 3.7" x 1.5" (120 × 94 × 32 mm)—height excludes knobs and switches
• Enclosure: Brushed aluminum, industrial look—may arrive with scratches, scuffs, and marks by design
• Built: Hand-soldered in British Columbia, Canada
• Battery: No battery compartment (RoHS-compliant build; use regulated PSU)

Power supply

The Double Crunch Transparent Overdrive is powered by a single 9 VDC adaptor. It accepts a standard filtered/regulated pedal power supply with a center-pin negative 2.1 mm × 5.5 mm plug (Boss-style). One jack feeds both circuits.

Want one voicing instead?

• Crunch Transparent Overdrive — choose Original or Extra Crunch in one pedal ($185)
• Crunch Plus Overdrive — more saturation in a single circuit
• Shop all McGregor Pedals

What players say

“I've never been much of a pedal guy, but once I played a Crunch, I found the one pedal I can't live without. Just enough push to warm up my guitar no matter the situation or amp.” — Tom Holland, James Cotton Band

“It doesn't colour your sound like other ODs can—it allows the sound of your gear to come through.” — Rick Halisheff

“Very responsive and doesn't mask your tone, just enhances what you got.” — Carter Low, Lee Ritenour Six String Theory Grand Prize

“I bought the Crunch Transparent OD. It's truly the best OD I own and I own many of the great OD pedals ever made. No joke.” — Johnny T.