Gamechanger Audio Light Optical Spring Reverb Pedal

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Gamechanger Audio's LIGHT Pedal features optical spring reverb with infrared sensors features both classic and new, innovative reverb sounds.
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Product Description

The Gamechanger Audio LIGHT Pedal: revolutionizing guitar sound and creating a whole new realm of possibilities! This unique pedal offers mind-blowing reverb tones like no other – thanks to it’s innovative optical sensor technology and remarkable effects section. With the classic spring reverb already under its belt, the LIGHT Pedal takes it to a completely different level by harvesting the full timbral and harmonic range of your spring reverb tank.

If you're looking for something more than the traditional “springiness”, then check out what the LIGHT Pedal has in store for you! Its groundbreaking combination enables endless creativity when crafting sounds – giving you access to an array of never-before-heard reverbs, perfect for all kinds of settings and moods. Plus, its enhanced efficiency means you can really take your performance up a notch with minimal effort necessary to get the job done.

So if you're ready for a new era in guitar sound, look no further than the Gamechanger Audio LIGHT Pedal. Enhance your performances with powerful reverb tones that’ll truly set them apart from anything else – let this revolutionary device open up new opportunities and reignite your passion for music today!

The LIGHT Pedal uses extremely sensitive optical sensors directed at different points of the spring. The optical sensors detect very subtle movements on the spring’s surface as sound-waves travel through it. This method allows to pick up a much wider range of frequencies, overtones and textures otherwise lost in the mechanical reverberation process.

The optical sensors also open doors to effects that are new to spring reverbs, such as tremolo, modulation, feedback and added harmonics. The result is a wide variety of reverb sounds ranging from classic to experimental to pure magic.

The LIGHT Pedal’s user interface pushes the boundaries of spring reverb even further. The extended signal mix section allows for a very precise balance between the dry, classic reverb tone and the new and optical reverb signals. The ability to stack various effects and control them with playing dynamics or an expression pedal makes this pedal an advanced tool for sonic exploration.

Gamechanger Audio Light Optical Spring Reverb Pedal Features

  • Sounds ranging from classic spring tank tones to colorful optical spring reverb tones with modulation and added harmonics.
  • Separate level controls for the dry signal, spring and optical reverbs. The dry signal can be attenuated and boosted.
  • 6 unique effects: optics (frequency and texture calibration), sweep (modulation), tremolo, reflect (delay), feedback and harmonic (added harmonics and octave tracking). Multiple effect stacking options.
  • Drive knob for adjusting the signal level sent to the reverb tank, thus affecting the reverb tank’s behavior.
  • Tone knob ranges from rumbling lows to piercing highs.
  • Simple one-knob envelope control produces either gated or ducking reverb.
  • Effects parameters can be linked to playing dynamics.
  • Switchable reverb tails in bypass mode.
  • Switchable latching or momentary modes for expressive playing.
  • Assignable expression pedal input.
  • Adjustable shock sensor to control spring noise produced by sudden movements, and mechanical impact.
  • Color LEDs inside the spring tank provide helpful visual feedback for monitoring the reverb’s output and input signal levels as well as multiple effects parameters, such as modulation rate.
  • High-quality buffered bypass.
  • Powered by a standard 9V DC center negative power supply with at least 500 mA. The power supply is not included.

The Classic Spring Tank Sound

The LIGHT Pedal’s central component and the main sound source is a traditional spring reverb tank, consisting of three major elements – the input transducer (spring exciter), the springs and the output transducer (pickup). There can be a lot of complexity in the spring’s movement patterns during the reverberation process, especially near the input transducer. However, due to the spring elasticity, by the time vibrations have reached the output transducer we mostly hear the spring’s own resonant frequencies, which is why all spring reverbs have such a particular jangly, metallic sound. The LIGHT Pedal’s spring output (the spring knob) offers a classic high-quality spring reverb sound with the option to adjust the spring “drip” (the drive knob) and the tone of the output signal (the tone knob).

The Optical Spring Reverb Sound

To capture the full range of the spring’s vibrations, the LIGHT Pedal uses multiple sets of special infrared optical sensors that act as photoelectric pickups. Each set of IR sensors is directed at a different point on the moving spring’s surface. The optical sensors detect much finer movements compared to the output transducer. This makes longer decays possible and more detailed frequency response, including subharmonics and overtones. Additionally, the pedal can achieve amazing modulation and tremolo effects by scrolling through the optical sensors or by switching them on and off (optical effects).


The LIGHT Pedal is a mono pedal with a 1/4’ jack input and output. The LIGHT Pedal also features an expression input for 1/4’ TS and TRS jacks and is compatible with all expression pedal types, as well as CV signal (active range to 3.3 V). The expression pedal can be assigned to the ctrl, spring, optical, drive or the gate knobs.

The Controls

  • 3 Mix Controls: dry, spring (classic spring sound) and optical (optical spring reverb sound)
  • Tone: shared between the spring and optical sounds, and does not apply to the instruments dry signal
  • Selector: 6-way effect selector knob
  • Ctrl: effect parameter control knob
  • Drive: spring tank’s input signal level
  • Gate: primary function: gated and ducking reverb control; secondary function – ctrl knob envelope response control
  • Tails: turns reverb tails on or off
  • Latch: sets the pedal into latching mode (on) or into momentary mode (off)
  • Shock sensor: shuts off the wet signal output when mechanical impact or a shaking motion is detected; three levels of shock protection: off, soft and hard
  • Soft footswitch: the primary function: toggling bypass; secondary functions – effects stacking, adjusting the envelope control over the effects, and entering the footswitch assignment mode

The Effects

    Optical: lets you choose a specific combination of optical sensors, each with a slightly different texture and timbral quality.

    Sweep: sweep is a modulation mode that rhythmically scrolls back and forth through the different optical sensor pairs. The different frequency response properties of each sensor result in a modulation-style effect.

    Trem: a tremolo effect is produced by rhythmically switching the optical sensors on and off. The tremolo effect can also be applied to the spring output together with the optical signal or separately.

    Reflect: this mode is a lo-fi delay that will send the instrument’s signal back into the reverb tank several times. Long delay times can create powerful, lengthy reverb decays.

    Feedback: the feedback mode sets the spring tank into self-oscillation, which lets you produce various drones and wall-of-sound-type pads. Lots of potential uses when paired with an expression pedal or when in momentary mode.

    Harmonic: in harmonic mode the spring tank is driven by a special circuit designed to produce added overtones and harmonics. Think of it as a shimmer reverb effect, but only produced naturally within the spring tank.

All of the above effects are controlled with the ctrl knob, which can be responsive to playing dynamics. The first three effects (optical, sweep, trem) can be stacked with one of the remaining three effects.

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Helpful Info about the Manufacturer
Phone:  202 407 9741 Warranty:  Lifetime warranty for all guitar pedals and a 5 year warranty and lifetime service for all other products.

Product Specifications

Gamechanger Audio Light Optical Spring Reverb Pedal Specifications

  • Product Dimensions: WLH 105 x 190 x 40 mm (4.1 x 7.5 x 1.6 in)
  • Product Weight: 1060 g (2.3 lbs)
  • Spring Tank: 3 Springs Type, 100 mm
  • Input Impedance: 1 MΩ
  • Max Input Level: 6.8 dBu
  • Output Impedance: 100 Ω
  • Max Output Level: 6.8 dBu
  • Peak Power Consumption: 4 W
  • Mean Power Consumption: 0.9 W
  • Power Requirements: 500 mA min, 9 V DC center negative, 2.1 x 5.5 mm plug

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