Alesis Quadraverb GT Guitar Studio Effects Processor - 1U Rackmount - Used
Looking to capture the iconic, lush reverb, delay, and modulation sounds that defined 90s alternative rock, shoegaze, and ambient tone? The Alesis Quadraverb GT remains one of the most sought-after vintage digital rack processors for guitarists and studio engineers alike. Building on the legendary original Quadraverb engine, the GT version adds a front-panel instrument input, guitar-centric pre-effects (including analog preamp distortion, compression, and cab emulation), and full MIDI control.
This unit has earned a legendary status among celebrated players across genres:
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Jeff Buckley: Perhaps the most famous user of the Quadraverb, keeping it permanently in his live and studio rigs to craft his signature lush, cavernous, and shimmering tones using heavily modified versions of the stock Taj Mahal preset.
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Billy Corgan: The Smashing Pumpkins frontman utilized the Quadraverb in his iconic rack setups, drawn to its thick, textured modulation and deep delays.
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John Squire: The Stone Roses guitarist relied on the unit during the Madchester era to achieve the expansive, swirling, and psychedelic textures of early 90s British rock.
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Other Notable Users: A staple in many pro rigs, artists like Mark Knopfler (Dire Straits), Warren Haynes (Allman Brothers), and Jeff Waters (Annihilator) have also incorporated the Quadraverb into their setups.
Condition is Very Good overall. The unit exhibits normal signs of wear and age typical for a vintage rack unit, including minor surface scuffs and rack rash around the mounting holes. Electronics, display, buttons, and jacks have been thoroughly tested and are fully functional with clean, quiet operation. Includes a high-output aftermarket AC 9V 3000mA power supply.
Specifications
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Model: Alesis Quadraverb GT
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Type: Digital Guitar Effects Processor / Preamp
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Format: 1U 19" Rackmount
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Condition: Very Good
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Inputs: 1/4" Front Guitar Input, 1/4" Rear L/R Line Inputs
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Outputs: 1/4" Rear L/R Line Outputs, 1/4" Headphone Output
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MIDI: In, Out/Thru
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Effects Architecture: Simultaneous Reverb, Delay, Pitch Change (Chorus/Flange/Phaser), EQ, plus Guitar Preamp (Distortion, Compression, Cabinet Emulator)
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Presets: 90 User Editable Memory Locations
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Power Supply: Aftermarket 9V AC 3000mA (Included)
Condition Notes
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Very Good overall cosmetic condition showing light signs of age and typical rack wear
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Fully functional with clear LCD display and responsive front panel controls
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Quiet operation with clean signal pass-through
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Aftermarket high-output AC 9V 3000mA power supply included
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All jacks, potentiometers, and MIDI connections tested working properly
Professionally Inspected & Ready to Use
Every pre-owned audio component and rack processor at BCR Music & Sound receives a thorough inspection before reaching our showroom or website. We verify power supply stability, check all input and output signal paths, test all front-panel buttons and encoders, and ensure full functional integrity. This guarantees your Quadraverb GT arrives ready to integrate seamlessly into your studio or live rig.
Secure Packing & Shipping
We take shipping seriously. Every piece of gear is carefully protected using professional packing materials, immobilized inside its shipping carton, and fully insured for transit. Whether you're across Pennsylvania or across the country, you can buy with confidence knowing your equipment has been prepared to arrive safely and exactly as described.