Radial Engineering

Radial Engineering Shotgun 4-Channel Guitar Amp Driver

4.6 (21 reviews)

Drive up to four guitar amps simultaneously with pristine, noise-free signal from a single pedalboard output.

$229.99*
In Stock on Amazon.com
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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

The Radial Engineering Shotgun is a purpose-built 4-channel guitar amp driver designed for guitarists who want to run multiple amplifiers from a single source without compromising signal quality. At its core is a low-noise buffer circuit that takes your guitar signal and splits it to four isolated outputs, each equipped with its own isolation transformer. This transformer isolation is critical in multi-amp setups because it breaks the electrical ground connection between amplifiers, eliminating the hum and buzz that commonly plague rigs where amps share a stage but sit on different power circuits.

What sets the Shotgun apart from basic splitter boxes is its Consistent Load Compensation technology. In a typical passive splitter, the input impedance changes depending on how many outputs are connected, which can alter your guitar's tone and response. The Shotgun maintains a stable impedance at the input regardless of whether one or all four outputs are active, so your core tone stays the same no matter how your rig is configured. The solid metal enclosure is built to withstand the rigors of touring, and the compact form factor fits neatly on a pedalboard. For session players, touring musicians, and anyone running a wet-dry or multi-amp setup, the Shotgun provides a professional-grade solution to signal distribution.

Key Features

4-channel Guitar Amp Driver with Low-noise Buffer Circuit

Consistent Load Compensation

Isolation Transfmers

Specifications

Brand
Radial Engineering
Model
Radial Shotgun
Type
4-Channel Guitar Amp Driver
Amplifier Type
Solid State
Output Channels
4
Connector Type
6.35mm (1/4") Jack
Key Features
Low-noise Buffer, Consistent Load Compensation, Isolation Transformers
Material
Metal
Color
Black
Weight
1.29 Pounds

Pros & Cons

👍 Pros

  • Isolation transformers on each output eliminate ground loop noise between multiple amps
  • Consistent Load Compensation keeps your tone stable no matter how many outputs are in use
  • Durable metal construction built for touring and heavy pedalboard use
  • Low-noise buffer circuit preserves signal clarity over long cable runs

👎 Cons

  • Solid-state buffer circuit may not appeal to players who prefer a fully passive signal path
  • At 1.29 pounds the unit adds noticeable weight to a pedalboard
  • Only offers 1/4-inch jack connections with no XLR or other output options
  • Premium price point compared to simpler passive splitter boxes

Frequently Asked Questions

The Shotgun uses a low-noise buffer circuit designed to maintain your original tone. The buffer preserves signal integrity especially over long cable runs, but it does not add coloration.
It maintains a stable input impedance regardless of how many outputs are active, so your guitar's tone remains consistent whether you're driving one amp or all four.
Yes, each output channel uses an isolation transformer specifically to break ground loops, which prevents hum and buzz when connecting to multiple amplifiers on different electrical circuits.
Yes, unused outputs do not need to be terminated. The load compensation circuitry keeps the input impedance consistent regardless of how many amps are connected.