GCX True Bypass 8-Loop Rackmount Audio Switcher


Add True Bypass to Any Stompbox or Rack Effect in Your Rig!

Get total control over your pedals, rack effects, amp & channel switching and more with the GCX Guitar Audio Switcher. You can use each of the eight loops for true bypass effect switching, A/B switching to select amps and preamps, or to control any type of footswitch function such as amp channel switching.

GCX loops have no active circuitry, and use the finest gold relays sealed in nitrogen, so your tone will stay pure and dynamic no matter what kind or how many effects you use. Combine the GCX Guitar Audio Switcher with a Ground Control Pro to form a complete switching system that has been the touring and recording pro’s choice for over 15 years!


GCX Features
  • 8 true bypass audio loops
  • Premium gold contact relays ensure sonic transparency
  • 2 front-to-back feed-throughs
  • Choose between buffered and passive inputs
  • A/B switching to select amp and preamps
  • Controls any footswitch function
  • Phantom powers Ground Control Pro via MIDI cable
  • Hand-built in the U.S.A.

Want setup suggestions?

We’ve compiled some of the most commonly requested setups and made them available to you as a PDF. There's everything from working with multiple preamps, stereo loops, channel switching, and more! And, these aren’t just some general suggestions. Our in-house tech has put together a set of hand drawn wiring diagrams so you can see exactly how to do it!

Blank GCX Worksheet - portrait
Blank GCX Worksheet - landscape

GCX Specifications
  • Input/Outputs
  • Guitar In (front panel): 1/4” buffered feed-through to rear panel Guitar Out
  • Feed Thru (front panel): 1/4” passive feed-through to rear panel Feed Thru
  • 1/4” 4-way mono* audio loops - In/Send/Return/Out (8)
  • *stereo audio loops available with optional GXS stereo upgrades
  • MIDI
  • MIDI In: Accepts MIDI commands (Voodoo Lab Ground Control Pro only)
  • MIDI Out: Passes MIDI commands to other MIDI devices
  • Controls/Switches
  • LED function buttons (8): Switches functions on/off, saves programs
  • Power Requirements
  • 9V Multi-Pin AC power supply included
  • Physical
  • Dimensions: 19" x 6.5" x 1.75" (483 x 165 x 44 mm)
  • Weight: 6.65 lb. (2.1kg)
  • Warranty
  • 5-year warranty in North America. Other regions contact your country's distributor for warranty details.


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