An ABY pedal splits or switches a guitar signal between two amplifiers, running one amp at a time in A/B mode or both together in Y mode, or two guitars into one amp.
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About ABY Switch Pedals
An ABY pedal splits or switches your guitar signal between two amplifiers. In A/B mode you toggle between amps, while Y mode runs both together for big blended tones. Used in reverse, an ABY box lets you plug two guitars into one amp and swap between them without unplugging a cable, saving time on stage and space in your live rig.
The range includes straightforward passive switchers such as the ART CoolSwitch alongside the Radial Engineering BigShot ABY and buffered Twin City, with features like transformer isolation and ground lift to keep dual-amp rigs quiet. Explore more routing options in guitar pedal switchers, browse the full guitar pedals range, and pair your switcher with quality guitar cables for a reliable signal chain.
ABY Pedal FAQs
What does an ABY pedal do?
An ABY pedal routes one input to two outputs. A and B select each output on its own, and Y engages both at once. Guitarists mainly use them to switch between two amps or run both together, or to switch two instruments into a single amp.
What is the difference between a passive and a buffered ABY pedal?
A passive ABY needs no power and keeps the signal path simple, but splitting a passive signal two ways can dull your tone. A buffered ABY like the Radial Twin City drives both outputs at full strength and switches silently, which matters most with long cable runs or always-on dual-amp setups.
Why do I hear hum when running two amps from an ABY pedal?
Two amps plugged into different power points often create a ground loop, heard as mains hum. ABY pedals with a transformer-isolated output and ground lift switch break the loop, or you can place a dedicated ground loop isolator in the signal path.
