About This Item
Description
Hand-built in Denmark since the early 2000s — the original Mudhoney is a single-channel distortion with a huge low-mid personality and a Sub switch that adds thick, growling bottom end. This is the pedal that made the Mudhoney name.
Which T-Rex Mudhoney is this?
This is the Mudhoney Distortion (Danish Collection) — the original, single-channel, hand-assembled-in-Denmark version. For the newer two-channel pedal with independent crunch and lead sections, see the T-Rex Mudhoney 2 Dual Distortion.
Why guitarists choose this pedal
- Hand-built in Denmark by T-Rex Effects — the original, most-loved Mudhoney tone.
- Rich, mid-forward distortion voice that cuts through a band mix.
- Sub Switch adds massive low-end for down-tuned rhythms and drop-D chugs.
- True bypass and very low current draw for pedalboard-friendly integration.
- 9 V DC or 9 V battery — road-ready anywhere.
Controls and switches
- Level — output volume.
- Gain — how much distortion the circuit produces.
- Bass — low-frequency shelf.
- Treble — high-frequency shelf.
- Sub switch — engages the low-end boost for thicker rhythm and drop-tuned playing.
- Footswitch — engages the distortion.
Power and pedalboard compatibility
- 9 V DC only, negative-center, 2.1 mm barrel (accepts 8–12.5 V DC).
- Current draw ~6 mA — negligible load, ideal for isolated supplies and battery use.
- 9 V battery capable — many players report 30+ hours of use per battery.
- True bypass — no tonal coloration when disengaged; place after buffers/tuners and before modulation and time-based effects.
Technical specifications
| Model | T-Rex Mudhoney Distortion (Danish Collection) |
| Effect type | Single-channel distortion |
| Circuit | Analog |
| Controls | Level, Gain, Bass, Treble, Sub switch |
| Bypass | True bypass |
| Input impedance | > 1 MΩ |
| Output impedance | < 1 kΩ |
| Power | 9 V DC (center-negative, 2.1 mm) or 9 V battery |
| Current draw | 6 mA |
| Jacks | Side-mounted input and output |
| Enclosure dimensions | 12.0 × 10.0 × 5.5 cm |
| Weight | 350 g |
| MPN / SKU | 811059010403 |
| GTIN (UPC/EAN) | 811059010403 |
| ASIN | B074PTM2XP |
| Country of manufacture | Denmark |
FAQ
Is this the original Mudhoney?
Yes — the Mudhoney Distortion Danish Collection is the original single-channel, hand-built-in-Denmark Mudhoney. The Mudhoney 2 is a newer two-channel take on the same platform.
Can I use it with bass guitar?
Yes — the Sub switch was designed with bass and drop-tuned guitar in mind. Many bassists use it as a dirt pedal.
What genres does it suit?
Rock, hard rock, blues rock, alternative, stoner, doom — anywhere thick, mid-forward distortion is welcome.
True bypass or buffered?
True bypass. The pedal is invisible to your signal when it is off.
Battery life?
Very long thanks to the ~6 mA draw. A single fresh 9 V alkaline typically lasts 30+ hours of continuous use.
Warranty?
2-year manufacturer warranty.





