Radial Engineering

Radial Engineering R15DC-US 15V Power Supply

4.6 (49 reviews)

Reliable Power for Your Radial GearThe Radial Engineering R15DC-US is a dependable 15-Volt power supply, designed to ensure your Radial Engineering devices receive the stable and clean power they need for optimal performance. Perfect for use with Tonebone pedals, the X-Amp, and the J33, this powe...

$34.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Reliable Power for Your Radial Gear

The Radial Engineering R15DC-US is a dependable 15-Volt power supply, designed to ensure your Radial Engineering devices receive the stable and clean power they need for optimal performance. Perfect for use with Tonebone pedals, the X-Amp, and the J33, this power supply offers a hassle-free power solution.

Specifications:

  • Voltage: 15 Volts
  • Current: 400mA
  • Compatibility: Tonebone pedals, X-Amp, J33
  • Item Weight: 8.8 ounces
  • Product Dimensions: 2.7 x 2.2 x 3.2 inches
  • Connector Type: Barrel connector
  • Output Wattage: 15 Watts
  • Power Source: Corded Electric

Key Features

For Tone Bone

400mA

Also for X-Amp and J33

Specifications

Brand
Radial Engineering
Model
R15DC-US
Voltage Output
15V
Current Output
400mA
Compatibility
Tone Bone, X-Amp, J33

Pros & Cons

👍 Pros

  • Specifically designed to be compatible with Tone Bone series products, ensuring optimal performance.
  • Delivers 400mA of power, sufficient for reliably operating compatible Radial Engineering devices.
  • Also compatible with X-Amp and J33 units, expanding its utility for users with multiple Radial products.
  • Provides a stable 15V power supply, crucial for the proper functioning of sensitive audio equipment.
  • Manufactured by Radial Engineering, a brand known for its quality in audio interfaces and power solutions.

👎 Cons

  • Limited to 15V and 400mA, meaning it is not a universal power supply for all audio pedals or devices.
  • The specific type of connector (e.g., barrel size, polarity) is not detailed, which could be important for compatibility with non-specified devices.
  • It is primarily designed for Radial Engineering products, potentially limiting its use for other brands.
  • Does not include any surge protection or filtering features that are sometimes found in more advanced power supplies.
  • The power supply is a singular unit and does not offer multiple isolated outputs for complex pedalboard setups.

Frequently Asked Questions

This Radial Engineering R15DC-US 15V Power Supply is specifically designed for Tone Bone series products, as well as the X-Amp and J33 units.
This power supply is primarily designed for specific Radial Engineering products and has a fixed output of 15V and 400mA; compatibility with other pedals would depend on their exact power requirements and connector type, which is not specified.
The 400mA current output ensures that compatible devices like the Tone Bone, X-Amp, and J33 receive sufficient power to function optimally and reliably without underpowering issues.
The "US" in the model number R15DC-US suggests it is configured for US electrical standards, typically 120V input, and may require an adapter or converter for international use.
Using a genuine Radial Engineering power supply ensures proper voltage and current delivery tailored to their products, which can help maintain optimal performance and prevent potential damage from incompatible power sources.