HIGHLIGHTS

• High-gain distortion and amp-in-a-box preamp based on Revv Generator Red channel
• Thick low end, smooth saturation, clear mids, sustaining leads and tight rhythm tones
• Responsive, forgiving feel with amp-like compression that follows picking dynamics
• Gain, volume, three-band EQ and Aggression switch offer wide, intuitive tone shaping
• V2 analogue circuit improves mid clarity and versatility at lower gain settings
• Manufactured in Canada to Revv Amplification’s professional quality standards
• Rugged all-metal enclosure designed for regular gigging and touring use
• Clear graphics and logical layout remain readable on dark stages
• Bright LED shows effect status and selected Aggression mode at a glance
• True bypass switching preserves natural tone and signal integrity when disengaged
• Fully analogue signal path delivers consistent tone without digital processing
• Top-mounted jacks and DC input simplify wiring on compact pedalboards
• Covered by a one-year manufacturer’s warranty for long-term confidence

DESCRIPTION

The Revv Amplification G4 is a high-gain distortion pedal designed to deliver the character and response of a modern amp channel in a compact, pedalboard-friendly format. It functions as a primary drive sound, a preamp-style front end or a gain stage to stack with other pedals. Based on the Red channel of Revv’s flagship Generator amplifier, it suits guitarists and bass players who need authoritative high gain alongside usable lower-gain textures, covering everything from scooped modern rhythm parts to sustaining lead work and thick, old-school crunch.

Tonally, the G4 is voiced for a deep, weighty low end with smooth, dense saturation and a rounded top that avoids harshness even at higher gain settings. Single notes feel full and vocal, with long, even sustain that supports expressive lead playing, while chords retain separation and punch for modern rock and metal styles. The revised V2 circuit brings clearer midrange definition, particularly helpful when running more scooped EQ settings, and extends the pedal’s usefulness into lower and medium gain sounds, making it responsive to guitar volume changes and adaptable to a wide range of amplifiers and modelling setups.

Under the fingers, the pedal feels forgiving and responsive, with a slightly compressed, elastic attack that encourages digging in without fighting the instrument. The playing feel closely mirrors that of a driven valve amp, making dynamic control intuitive and musical rather than abrupt, and allowing players to shape drive and saturation naturally from their picking hand.

Sound shaping is handled by a familiar amp-style three-band EQ with Bass, Middle and Treble controls that offer a wide but practical range. Each control responds smoothly, making it easy to dial in thickness, clarity or bite without sudden jumps or narrow sweet spots. Gain is plentiful and intentionally usable from low settings upward, while the three-position Aggression toggle alters saturation, compression and low-end response. With Aggression set to Red, the pedal delivers its most saturated and fluid feel, ideal for lead work. Blue provides a balanced, dense rhythm voice, while the off position offers a more open, spongy character suited to classic rock, blues and cranked-amp tones.

The circuit itself is fully analogue and derived directly from Revv’s amplifier designs, prioritising tone, consistency and reliability. Power is supplied via a standard isolated 9V centre-negative input, keeping integration straightforward on most pedalboards.

The G4 is housed in a robust all-metal enclosure built to withstand regular gigging and transport. The graphics are clear and purposeful, with legible control markings and a clean layout that remains easy to read under stage lighting. An LED indicator shows when the pedal is engaged and reflects the selected Aggression mode for immediate visual feedback.

True bypass switching preserves the natural tone and feel of the instrument when disengaged, while top-mounted input and output jacks keep pedalboard layouts tidy and space efficient. Revv Amplification backs the G4 with a one-year warranty covering defects in materials and workmanship when purchased new through authorised dealers.

Overall, the Revv Amplification G4 stands out for its combination of thick, authoritative gain, clear midrange control and genuinely amp-like feel, making it a versatile and dependable choice for players who want convincing high-gain tones and expressive lower-gain sounds from a single, straightforward pedal.

CONTROLS

• FOOTSWITCH: True bypass footswitch engages the pedal while preserving natural tone when disengaged
• GAIN: Controls saturation from chewy low gain to dense high gain, with a wide usable range
• BASS: Shapes low-end weight and punch, staying tight even with high gain or bass instruments
• MIDDLE: Adjusts midrange focus for clarity, cut or scoop across all settings
• TREBLE: Sets brightness and bite while balancing attack and smoothness
• VOLUME: Controls overall output level for easy matching or boosting
• AGGRESSION: Three-position toggle alters compression, saturation and low-end feel

COMPONENTS AND TECHNICAL SPECIFICATIONS

• V2 circuit revision improves midrange clarity and usable lower-gain response
• True bypass switching preserves instrument tone when the pedal is disengaged
• High-quality capacitors and resistors chosen for consistency, low noise and stability
• Discrete analogue gain stages deliver smooth saturation and natural compression
• Optimised input and output stages suit guitars, basses, amplifiers and modelling systems
• Powered by standard 9V centre-negative DC supply (not included)
• Battery operation not supported
• Current draw measured with Truetone 1Spot mA Meter
• Bypass approximately 5 mA
• Engaged maximum approximately 7 mA

Current draw may vary depending on control settings and circuit behaviour
Use a high-quality isolated power supply for best performance

ENCLOSURE DIMENSIONS

• Depth 122 mm / 4.8 in
• Width 72 mm / 2.8 in
• Height 35 mm / 1.3 in

WEIGHT

• 277 g
• 0.61 lbs

OFFICIAL UK DEALERS

FX Pedal Planet Limited and FX Pedal Planet Online Store proudly serve as UK dealers for Revv Amplification. If the specific Revv Amplification product you are looking for is not currently in stock, please contact us and we will include it in our next stock order, offering competitive pricing and dedicated customer service.