Radial Engineering

Radial Engineering BigShot ABY Passive Amp Switcher

4.6 (229 reviews)

Seamlessly Switch Between Amps with the Radial BigShot ABYThe Radial BigShot ABY is a true passive switcher pedal designed for guitar and bass players who use multiple amplifiers. With its ground lift, polarity switch, and isolation transformer, it ensures noise-free operation and maintains your ...

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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

Seamlessly Switch Between Amps with the Radial BigShot ABY

The Radial BigShot ABY is a true passive switcher pedal designed for guitar and bass players who use multiple amplifiers. With its ground lift, polarity switch, and isolation transformer, it ensures noise-free operation and maintains your core tone.

  • Brand: Radial Engineering
  • Model: BigShot ABY
  • Type: Amplifier Switching Pedal
  • Circuit: Passive, True-Bypass
  • Features: Ground Lift, Polarity Reverse, Isolation Transformer
  • Construction: 14-Gauge Steel

Key Features

Toggle between 2 guitar amps or play both at once

Output B has ground-lift, polarity reverse, isolation transformer 14-gauge steel construction

Specifications

Construction Material
14-gauge steel
Output B Features
Ground-lift, polarity reverse, isolation transformer
Switching Capability
Toggle between 2 guitar amps or play both at once

Pros & Cons

👍 Pros

  • Offers the flexibility to switch between two guitar amplifiers or operate both simultaneously for varied soundscapes.
  • Features robust 14-gauge steel construction, contributing to its durability and reliability in different environments.
  • Equipped with an isolation transformer on Output B, which can help eliminate ground loop hum.
  • Includes a polarity reverse function on Output B, allowing phase correction between two amplifiers.
  • Provides a ground-lift feature on Output B, useful for resolving hum issues caused by conflicting grounds.

👎 Cons

  • The passive design means it does not offer active buffering, which could potentially impact signal integrity over long cable runs.
  • Lacks any visual indicators for which output is currently active, requiring the user to rely on audible cues.
  • Does not include any integrated signal boosting or attenuation features for level matching between amplifiers.
  • Requires external cabling to connect to amplifiers, which is not included with the unit itself.
  • Its function is limited to ABY switching and ground issue resolution, without additional signal processing capabilities.

Frequently Asked Questions

The Radial Engineering BigShot ABY allows users to switch between two guitar amplifiers or play both amplifiers simultaneously, offering versatility for guitar setups.
Yes, Output B of the BigShot ABY is equipped with an isolation transformer, which is designed to prevent ground loop hum.
Yes, the BigShot ABY features a polarity reverse switch on Output B, which can be used to correct phase discrepancies when running two amplifiers.
The BigShot ABY is built with 14-gauge steel construction, contributing to its robust and durable design.
The Radial Engineering BigShot ABY is a passive device, meaning it does not require external power to function.