PZ-Deluxe Front Picture Classic Inside 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 7080
  • 100% discrete class-A signal path for exceptional audio
  • Exclusive Drag™ control pickup load correction
  • Variable power booster with mid control for added cut
  • Transformer isolated output to eliminate ground loops

The Radial Switchbone ABY is a high performance ABY switcher that is designed to deliver the natural tone and feel of the instrument without introducing noise, distortion or artifact of any kind.

The design begins with the same 100% discrete class-A buffering circuit as the critically acclaimed Radial JD7 Injector for exceptional audio performance. Each part is hand inserted into a double sided through-hole PCB for optimal signal transfer. To ensure the natural feel of the instrument is maintained, Drag™ control load correction lets you re-introduce the natural relationship between the guitar pickup and the amp that is invariably lost when the guitar signal is buffered. This also allows longer cable runs of upwards to 15 meters (50') without noise.

There are three footswitches on the top panel: The first selects between A or B amps while the second is used to combine amps. To get rid of the pops common to passive switchers, the Switchbone employs photocells that ramp-up the signal for smooth noise-free switching - even when used with high gain amps. To eliminate hum and buzz caused by ground loops, the Switchbone's second output is equipped with a transformer for 100% isolation. To ensure the two amps play in absolute phase, you simply toggle the easy access 180º polarity reverse switch.

The third footswitch lets you engage the built-in power booster. This is equipped with a variable level control and is augmented with a 3-position mid-boost switch for extra cut when soloing. The boost function can be bypassed and converted to a mute switch for quiet on-stage tuning. A separate tuner out is always on for quick tune-ups and buffered to keep your signal path clean. Smart 'flashing' LEDs let you know which amp was last selected keeping you in total control at all times.

The Switchbone is the most natural sounding ABY amp switcher made today.


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 artifact.

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Adding a tuner to your setup

Drive two amps plus your tuner at the same time. Photocell switching, transformer isolation and buffered outputs eliminate popping, ground loops and noise of all types.

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. The 180º polarity reverse ensures both channels play in phase.