The Carl Martin Big John is a reliable, pedalboard-friendly power supply designed to deliver clean and stable \(9\text{V}\) DC power to your effects pedals. Built to withstand gigging, it features multiple outputs, an ultra-quiet design, and built-in status LEDs to keep your rig running smoothly.

Key Features & SpecsOutputs: Provides \(9\text{V}\) DC outputs to power standard guitar and bass pedals.

Current Capacity: Drives multiple (7 outputs) devices safely. Protection: Includes short-circuit protection to keep your valuable pedals safe.B

Housed in a heavy-duty, road-ready metal casing with easy-to-read power and check status LEDs.

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Listed5 days ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more
Brand
Model
  • Big John
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Marc

Highlands, NJ, United States
Joined Reverb:2026

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