The "Noiz R Us" Wahcko is JAM Pedals' multi-voiced Wahcko mk.2 wah pedal in a one-of-a-kind hand-painted custom artwork finish. Under the paint it is the same pedal as the standard mk.2: a wah built around a custom JAM inductor inspired by the vintage TDK inductors found in classic 1960s Cry Baby and Vox wah circuits, with six selectable sweep ranges and a dedicated bass mode1. The Wahcko has been part of the JAM family since 2008, and the mk.2 builds on that history with an expanded expressive range and greater control over its response1.
Every custom artwork pedal is a one-of-a-kind hand-painted piece, and JAM Pedals states that the pedal you receive will differ in detail from the photos shown1.
What it does and how it is controlled
The Wahcko mk.2's core feature is the side-mounted six-position SWEEP rotary switch, which chooses from six distinct frequency ranges1. Instead of committing to a single wah voicing, you pick the part of the spectrum the rocker sweeps through, which is what makes the pedal "multi-voiced". Inside, DIP switches configure the pedal for guitar or bass; bass mode extends the expressive sweep to lower-register instruments1.
The mk.2 also carries a newly designed custom rubber tread on the footplate2, and the rocker's resistance is adjustable: JAM Pedals says to "Set the rocker's resistance to your preference using the included 4 mm Allen key. Choose a lighter movement or a firmer" one1. A 4 mm Allen key for rocker-tension adjustment is included with the pedal1.
| Control or feature | What it does |
|---|---|
| Rocker (foot treadle) | Sweeps the wah filter across the selected range; custom rubber tread12 |
| SWEEP switch (side-mounted, six positions) | Chooses from six distinct frequency ranges1 |
| Internal DIP switches | Configure the pedal for guitar or bass; bass mode extends the sweep to lower-register instruments1 |
| Rocker tension adjuster | Sets lighter or firmer rocker movement, adjusted with the included 4 mm Allen key1 |
Where it came from
The Wahcko's circuit centers on a custom JAM inductor inspired by the vintage TDK inductors found in classic 1960s Cry Baby and Vox wah circuits, which is where its character comes from1. The mk.2 carries that design forward with a six-position SWEEP side-mounted rotary switch that chooses from six distinct frequency ranges, letting a player set the pedal's response to suit their instrument and style1. It runs on a 9V DC center-negative adaptor or a 9V battery, draws 10 mA, and measures 25.7 × 12.5 × 7 cm including jacks and controls, weighing 1.7 kg1.
The artwork versions
The Noiz R Us finish is one of several custom artwork versions of the Wahcko mk.2. JAM Pedals lists "Loading Dock", "Metal", "Noiz R Us", "Silver Sky" and "Achenbach" as custom artwork versions in stock, and describes them as the same sound with different artwork12. The Achenbach version is listed as sold out1.
| Version | Status |
|---|---|
| "Loading Dock" Wahcko | In stock, same sound, different artwork1 |
| "Metal" Wahcko | In stock, same sound, different artwork1 |
| "Noiz R Us" Wahcko | This pedal1 |
| "Silver Sky" Wahcko | In stock, same sound, different artwork1 |
| "Achenbach" Wahcko | Sold out1 |
Players and practical details
JAM Pedals shows Phil X (Bon Jovi), Jim Campilongo, Mark Lettieri (Snarky Puppy), Marc Ribot, Dweezil Zappa, Thurston Moore (Sonic Youth), JD Simo and Molly Miller as artists using this pedal1.
The pedal runs on a 9V DC center-negative adaptor or a 9V battery, drawing 10 mA1. JAM Pedals offers a 30-day money-back guarantee with a refund no questions asked, and ships the pedal DDP with 20% UK VAT and all duties included, with no extra charges on delivery1. For other wah voicings from the same maker, see the Seagull reversed wah pedals, and for the wider category see Wah-Wah Pedals.
Questions
Can the JAM Wahcko be used with bass?
Yes. Internal DIP switches configure the Wahcko mk.2 for guitar or bass, and bass mode extends the pedal's expressive sweep to suit lower-register instruments. The same switches also let you set it back to guitar mode, so one pedal can serve both a bass rig and a guitar board.
How do you adjust the rocker tension on the Wahcko?
The rocker's resistance is adjustable to your preference using the included 4 mm Allen key. JAM Pedals says you can choose a lighter movement or a firmer one, so the pedal can be set to match how hard you rock the treadle, from subtle quack sweeps to full heel-down and toe-down travel.
Is the Noiz R Us Wahcko true bypass?
Yes. JAM Pedals lists the Noiz R Us Wahcko as true bypass, so when the pedal is off your guitar signal passes straight through without the wah circuit loading it. The pedal also runs on a 9V DC centre-negative adaptor or a 9V battery, drawing 10 mA.
What does the six-position sweep switch do?
The side-mounted rotary SWEEP switch chooses from six distinct frequency ranges. Rather than locking you to one wah voicing, it lets you move the pedal's sweep up or down the spectrum, from tighter, higher-range quack settings to wider, lower sweeps, which is also how the bass mode reaches lower-register instruments.
What is the difference between the Noiz R Us and other Wahcko artwork versions?
Nothing but the paint. JAM Pedals offers the Wahcko mk.2 in several custom artwork versions in stock, including "Loading Dock", "Metal", "Silver Sky" and "Achenbach", and describes them as the same sound with different artwork. Each is a one-of-a-kind hand-painted piece, so the pedal you receive will differ in detail from the photos shown.
Sources (2)
- "Noiz R Us" Wahcko, JAM Pedals (jampedals.com)
- Wahcko, JAM Pedals (www.jampedals.com)
