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GAMECHANGER AUDIO BIGSBY Polyphonic Pitch-Shifter Pedal

BH #GAGCABG • MFR #GCABG
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GAMECHANGER AUDIO BIGSBY Polyphonic Pitch-Shifter Pedal
Key Features
  • Reproduces String Bending / Vibrato FX
  • Spring-Loaded Rocking Foot Pedal
  • Powerful SHARC DSP Chip
  • Frees Up Hands for Creative Expression
Experience the unique sound of a legendary tremolo while freeing up your hands with the BIGSBY Pedal from Gamechanger Audio, a polyphonic pitch-shifting pedal. Developed in collaboration with Fender Musical Instruments Co., the BIGSBY let's you engage in seamless pitch bending with any instrument while maintaining natural timbre and tone.
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GAMECHANGER AUDIO GCABG Overview

Experience the unique sound of a legendary tremolo while freeing up your hands with the BIGSBY Pedal from Gamechanger Audio, a polyphonic pitch-shifting pedal. Developed in collaboration with Fender Musical Instruments Co., the BIGSBY let's you engage in seamless pitch bending with any instrument while maintaining natural timbre and tone.

With its spring-loaded rocker pedal and powerful SHARC signal processor, the BIGSBY pedal tracks your signal in real time and allows you to produce the unmistakable twang and nuance of the classic Bigsby tremolo arm while leaving your hands free to play any kind of licks or techniques you can come up with. The pedal features numerous controls for fine-tuning your bending, including dynamically LED-lit Rate, Blend, and Depth wheels, a switch for inverting the shifting direction, and full MIDI CC and PC control. A dedicated 1/4" TRS jack lets you either control BIGSBY with an external footswitch, or use the BIGSBY pedal as spring-loaded expression pedal, either in conjunction with or separately from the pitch-shifting output.

A Legendary Design
The idea to create a BIGSBY-style pitch-shifting pedal was born out of a long-standing admiration for the BIGSBY system’s unique feel, sound, and design. This classic tremolo arm system was first introduced by Paul Bigsby in 1951, and the spring-loaded masterpiece, with its palpable twang and inimitable nuance, quickly became the stuff of legend.

Whether you’re wielding one yourself or thrilling to a classic recording, the magical warbling instantly conjures visions of back alley brawls in Brixton, spaghetti Western gunfights in a sun-drenched desert, or fist-pumping crowds singing odes to rocking the free world.

How It Works
The Gamechanger BIGSBY combines golden-age rock ’n’ roll mechanics with state-of-the-art signal processing. On the outside, an original-style activator bar (modified to withstand years of foot stomping) is paired with a carefully selected spring that yields the same cushy feel and unique bounce of hand-activated models—because that’s integral to the feel of all the best traditional tremolo systems.

On the inside, a powerful SHARC processor chip, found in high end multi-FX processors, samples your signal and processed it with a fully polyphonic pitch-shifting algorithm, controlled directly by the pedal.

Inspired by The Past, Built for The Future
  • Stellar build quality with metal foot pedal and smooth spring action
  • Frees your hands up for intricate patterns
  • Can produce string-bending combinations for lap-steel and slide-inspired guitar licks
  • Can be paired with other instruments and FX for unique, unheard sounds
Custom A/D and D/A Conversion
Gamechanger Audio developed their own hybrid algorithm that would not only achieve smooth, polyphonic real-time pitch-shifting in the lower harmonic intervals, typical of Bigsby-style vibratos, but also preserve the natural timbres and inherent tonal characteristics of the instruments plugged into it. They specifically worked to ensure it melds seamlessly with electric and acoustic guitar (standard 6-string, baritone, and bass), mandolins, banjos, and more.

Another key component of the BIGSBY pedal’s sound is its Detune parameter—a precision crafted algorithm designed to emulate the imperfections and dissonant properties of traditional mechanical string-bending hardware. This makes vibrato effects produced by the Bigsby pedal virtually indistinguishable from the real deal.

Extra Features
  • High-quality buffered bypass with seamless transition in and out of bypass
  • Auto mode lets LFO contol the pitch-bend rate and the foot pedal control the pitch-bend depth
  • 12-semitone pitch range up or down, with each range separately adjustable
  • 10 user preset slots via MIDI PC
  • Knob Lock option prevents accidental parameter adjustment during performance
UPC: 750258555233

GAMECHANGER AUDIO GCABG Specs

General
Frequency Response
20 Hz to 20 kHz (±1 dB)
Input Impedance
1 Megohm
Maximum Input Level
1/4" TS Input: 9 dBu
1/4" TRS Input: 20 dBu
Maximum Output Level
1/4" TS Output: 9 dBu
1/4" TRS Output: 20 dBu
Output Impedance
100 Ohms
SNR
90 dBA
Audio Circuit Type
Digital
Buffer
Buffered Bypass
Controls
3 x LED-Lit Scroll Wheel (Rate, Blend, Depth)
1 x 2-Way Switch (Pitch-Shift Invert)
1 x Spring-Loaded Foot Pedal
Inputs/Outputs
Audio I/O
1x 1/4" TS Hi-Z/Instrument Input
1x 1/8" / 3.5 mm TRS MIDI Input
1x 1/4" TS Line Output
1x 1/4" TRS Input/Output (Expression Out, Footswitch In)
Power
Power Source
AC Adapter with Power Brick (Not Included)
DC Input Power
9 VDC at 250 mA
Power Consumption
2 W
Operating Current
220 mA (Typical)
Physical
Color
Black / Chrome
Material of Construction
Metal
Operating Conditions
32 to 122°F / 0 to 50°C 
Dimensions
8.6 x 4.3 x 3.3" / 21.8 x 10.9 x 8.4 cm
Weight
2.11 lb / 0.96 kg
Packaging Info
Package Weight
2.745 lb
Box Dimensions (LxWxH)
10.8 x 6.2 x 4.2"

GAMECHANGER AUDIO GCABG Reviews

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