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Authentic Recreation of the Big Muff and RAT Circuits!
Motherload pays tribute to the classic fuzz/distortion pedals that set the standard for saturated guitar tones. At the heart of this pedal are two independent, fully analog circuits inspired by nothing less than the holy grail: the Muff and Rat designs.
The R circuit ranges from mild overdrive to fully saturated tones. Use the filter control to tame the highs or cut through the mix when needed.
The M side delivers the classic fuzz/distortion sound you expect—but with excellent string separation and rich overtones for nearly endless sustain. While the tone control stays true to the classic Muff style, the voice control offers a wide range of Muff design variations.
The two circuits operate independently, each with its own EQ settings—until you press the LINK EQ button. That’s when the magic really starts! All EQ controls become active on both circuits, unlocking a whole new palette of tones.
Features
- Legendary distortion/fuzz circuits combined in one pedal
- Fully analog, authentic recreations of the Big Muff and RAT circuits
- Expanded tone control per section; in link mode, all controls are active on both circuits for greater versatility and a new range of saturated sounds
- Authentic recreation of the Big Muff and RAT circuits that set the standard for saturated tones
- Thick, powerful distortion with nearly endless sustain
- Switch to select between Muff or Rat circuit
- Gain control: adjusts the amount of saturation
- Volume control: adjusts overall output level
- Filter control: EQ for the Rat circuit (variable low-pass filter)
- Tone control: EQ for the Muff circuit (blend of fixed low-pass and high-pass filters)
- Voice control: varies midrange tonal differences the Muff circuit has evolved through over the years
- Link EQ switch: activates all 3 EQ controls (Filter, Voice, and Tone) on both fuzz/distortion circuits
- Top-mounted jacks
- Silent true-bypass design with high-quality relay
- Power supply: 9 V DC, negative center (power supply not included)
- Current draw: 35 mA @ 9 V DC
- Dark gray die-cast enclosure with holy grail graphic
- Made in Greece
Scope of delivery
- 1 x Crazy Tube Circuits Motherload Pedal
Specification
- Product number 00113070
- Colour Grey
Reviews
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Financing
easyCredit Ratenkauf
- 2 to 60 months term
- Financing from 21,00 € / month
- More information about installment purchase
ConsorsFinanz Finanzierung
- 6 to 72 months term
- 0% financing for 18,91 € per month
- More information on financing
| Operating instructions / manual |
| 3 Year warranty | |
| 30 Day Money Back | |
| Price Match Guarantee | |
| Over 2.000.000 satisfied customers |
The hotline is currently not manned. You can reach us again on Wednesday, 20.05.2026 at 09:30.
| Wednesday | 09:30 - 18:00 | |
| Thursday | 09:30 - 18:00 | |
| Friday | 09:30 - 18:00 | |
| Saturday | 09:30 - 13:30 | |
| Monday | Closed |
Different opening times |
| Tuesday | 09:30 - 18:00 |