Switchbone V2 Top View Switchbone V2 Rear Panel View
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  • "The Radial Switchbone allows me to run my two favorite amps at the same time without compromising my tone. The mid boost is the coolest feature. I turn it on when I need a lead to sing and sustain. If only I had this pedal 20 years earlier!"

    Myles Kennedy
    (Alter Bridge, Slash)
    Myles Kennedy
  • "For me, the key to a great pedal is its ability to be transparent when not engaged. The 'Switchbone' gives my rig plenty of options when called upon, but also stays out of the way when not! The Switchbone is Amazing!"

    Johnny A
    (Favoured Nations recording artist)
    Johnny A
  • "The Switchbone assures that both amps are properly grounded and in phase, and sounds better than any other ABY box I've ever heard. The variable boost sounds great and is a Godsend to have on board... This pedal is a complete winner."

    Lyle Workman
    (Beck, Sting, Todd Rundgren)
    Lyle Workman
  • "I've stepped on the Switchbone an average of 3 or 4 times per song for at least 200 shows now and it has not failed, glitched, flinched once….nothing. Rock solid and keeps tone and punch true."

    Steve Mazur
    (Our Lady Peace)
    Steve Mazur


Part no. R800 7081 00
  • 100% discrete Class-A signal path for exceptional audio
  • Drag™ control load correction for natural tone
  • Opto-coupler for noiseless switching
  • Transformer isolated to eliminate buzz and hum

The Switchbone V2 may well be the ultimate ABY/C guitar amp switcher. This device lets you switch and combine up to three guitar amplifiers without introducing distortion, switching noise or hum into the signal path. Most importantly, the Switchbone V2 will retain the natural tone and feel of your instrument so that your natural playing style shines through.

Unlike other switchers that employ integrated circuits to buffer the signal, the Switchbone features Radial's award winning Class-A audio circuit with 100% discrete components throughout. Class-A circuits are preferred by audiophiles and guitarists due to the purity of the signal path and warm sounding even-order harmonics that they produce. This is augmented with Drag™ control load correction that lets you 'dial-in' the tone and feel as if connected directly to your amp. This clever combination lowers the impedance to allow runs of up to 15 meters (50') without susceptibility to noise using standard coaxial cables. To eliminate troublesome switching pops caused by mechanical footswitches and relays, the Switchbone employs high performance opto-couplers that essentially use light to emit and receive the command. These devices ramp-up and ramp-down the signal for smooth, controlled switching even with high gain amps. To eliminate the hum and buzz that is common with other switchers, the Switchbone V2 is equipped with transformer isolated outputs to eliminate nasty ground loops and is augmented with ground lift switches to further aid in noise elimination. Polarity reverse switches on outputs B and C ensure all amps are aligned to absolute phase.

The Switchbone V2 may be used as a standard ABY switcher with both A and B outputs used separately or together. When two amps are on, ToggleMode™ LED indicators flash to let you know which amp was selected last so that you can either turn that one off or change the selection on the fly. When three amps are needed, the tuner output can be repurposed along with the third footswitch for clean rhythm and lead setups.

In play, the Switchbone V2 elevates your setup with a variable Baseline™ buffer control that lets you juice up the front end of your amp for extra punch. A built-in power booster at the output delivers up to +18db of ultra-clean boost with the option to add mid-boost for extra sustain when playing lead. The Boost footswitch may also be reassigned to a tuner output for quiet on stage adjustments. To add even more control to your performance, the Slingshot™ remote control output can be used to turn on effects, change speakers when combined with the Tonebone™ Cabbone™ or even reroute effects using the Twinline™.

The Switchbone V2… the world's finest ABY/C switcher.


Effects Loop Controler


Valve Tube Head Switcher


Active ABY Switcher


Standard ABY setup

The Switchbone is a high performance ABY designed to deliver the natural tone of your instrument to your amps without introducing noise or artefact.

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Used as an ABC amp selector

Use the tuner/out-C as a third output to select between three different amps. Transformer isolation and buffered outputs eliminate ground loops and noise.

Used as a channel selector

For older amps, the Switchbone can be used to drive the two amp channels so that you can toggle between them. Use the Slingshot output to control amp settings like reverb.