Voodoo Lab GCX

A Classic Rack Switching Unit: The "Pro Rig" Approach by Voodoo Lab

The GCX fits into the grand tradition of rack switching systems: centralizing wiring, instantly recalling effect combinations, and maintaining a coherent audio chain whether you use stompboxes, rack multi-effects, or multiple amplifiers. Its philosophy is simple: loops without coloration, no active circuits in the loops, and relay switching to preserve the attack, dynamics, and tone of your guitar. Add to that a design made for the stage (program recall, status LEDs, MIDI integration) and you get a tool tailored for complex pedalboards as well as touring racks.

Who Is the GCX For, and In Which Setups Does It Make a Difference?

The Voodoo Lab GCX targets the guitarist (or technician) who wants to simplify a complex rig without sacrificing signal quality. In the studio, it allows you to compare chains, isolate noisy effects, and recall configurations with one click. Live, it's the ally of musicians who alternate between very contrasting sounds (clean, crunch, lead, ambient), who use a preamplifier + rack effects, or who want to control multiple amplifiers without pedalboard juggling. It also works very well for "pedalboard + amp loop" setups, as you can dedicate certain loops to the pedalboard and others to the effects section (FX loop), while keeping clean and repeatable wiring.

Features and Control: 8 Loops, A/B, Footswitch, and MIDI Integration

Each GCX loop has separate In / Send / Return / Out connections, enabling multiple approaches: classic pedal insertion, rack processor integration, A/B switching to select two sources (two preamps, two amps), or send mute for parallel effects systems. The GCX also offers 2 feed-throughs from front to rear: a buffered path (ideal for optimizing passive pickups' response and reducing high-frequency loss over long cable runs) and a passive path (for direct connection). On the control side, it accepts MIDI commands (designed to work with the compatible Voodoo Lab controller), passes MIDI through to other devices, and features 8 LED buttons on the front panel to activate/deactivate functions and store programs.

Sound Quality

A switcher should not "color" the sound... and that is exactly the GCX's goal. Thanks to its true bypass loops without active circuits inside and relay switching, the output remains clear, dynamic, and faithful to your guitar and amplifier. This benefit is especially noticeable in rigs where, even with pedals off, the signal normally passes through a series of buffers, electronic switches, and patch cables: with the GCX, you regain a more direct feel, better definition in attacks, and level consistency when activating complex chains. The result: a cleaner base tone and effects that express themselves better when truly engaged.

Technical specifications

Effects	Remote Control, Selector	Type	sector
Technology	Analog	Use	pedalboard
Format	Rack	Color	Black
Number of tracks	8

Audio loops	8, true bypass	MIDI In	accepts MIDI commands (Voodoo Lab Ground Control Pro only)
Relays	gold-plated contacts, sealed under nitrogen	MIDI Out	relays MIDI commands to other devices
Active circuitry in the loops	none	Phantom power for a controller	available via MIDI cable, compatible controller
Possible uses	effects insertion, A/B (selection), send muting, control of footswitch-type functions (channel switching, etc.)	8 function buttons with LEDs	function activation/deactivation and program saving
Stereo loop expansion	GXS stereo upgrades (optional)	Weight	6.65 lb (2.1 kg)
Guitar In (front panel)	6.35 mm jack, buffered feed-through to Guitar Out (rear)	Construction	hand-assembled in the United States
Feed Thru (front panel)	6.35 mm jack, passive feed-through to Feed Thru (rear)	Included accessories	documentation, warranty card
8 mono loops, each with 4 6.35 mm jacks	In / Send / Return / Out