Description
Keep your MXR Iso-Brick or DC Brick powered up with this dedicated 18V DC adapter from Jim Dunlop, engineered specifically to work with the M237 and M238 pedal power supplies.
- Output: 18V DC @ 2A (2000mA)
- 5% regulated for stable, consistent power
- Connector size: 2.1mm x 5.5mm barrel
- Polarity: Positive barrel, negative center
- Includes interchangeable plug clips for US, EU, UK, and AU outlets
Whether you’re touring internationally or just need a spare adapter for your home rig, the included plug clips make this a versatile choice for players who move between regions. It’s a straightforward, no-frills solution to keep your pedal power brick running exactly as intended.
Note: this adapter is designed to power the M237 and M238 units themselves, not individual pedals directly.





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