Alesis Quadraverb Plus Effects Processor w/ power supply

The Quadraverb Plus is the expanded successor to Alesis's original Quadraverb — same core reverb and multi-effects platform, now with 20-bit processing, a higher sample rate, and a more flexible effects architecture. The reverb algorithms carry forward the smooth, dense character that made the original a studio staple, now with improved clarity and low-end definition. Sixteen configuration modes cover reverb, delay, chorus, flanging, pitch shifting, parametric EQ, and their combinations, with the Plus adding refined routing options and deeper modulation capabilities over its predecessor. One hundred factory presets and 100 user memory slots give ample storage for custom programs. MIDI in/out covers full patch recall and real-time parameter control. A practical, musical effects unit that sits comfortably in studios chasing the warmth of early 90s digital processing — and one that holds its own as a straightforward workhorse in any rack.
This unit is in very good condition and fully functional throughout. Cosmetic wear consistent with normal rack use. Photos show the condition accurately.
- Make: Alesis
- Model: Quadraverb Plus
- Type: multi-effects signal processor, 1U rackmount
- Processing: 20-bit digital
- Sample rate: 44.1 kHz
- Effects: reverb, delay, chorus, flanging, pitch shifting, parametric EQ — 16 configuration modes
- Presets: 100 factory, 100 user
- Frequency response: 20Hz - 20kHz
- Dynamic range: 95dB
- MIDI: in/out, full program change and parameter control
- Inputs: stereo 1/4" unbalanced
- Outputs: stereo 1/4" unbalanced
- Power: included AC adapter
- Modifications: none
- Includes: power supply
Ships carefully packed and insured for full value.
International buyers are welcome — please contact us for a shipping quote before purchasing.
About Mill River Music
Mill River Music is an independent, human-powered music shop located in downtown Northampton, MA, run by a team of players, enthusiasts, and certified repair technicians. Every piece of used gear we sell is personally inspected, tested, and set up before it ships — we don't list it until we'd be happy to play it ourselves.
As Martin and Taylor certified techs, we hold our guitar work to a high standard, and we're committed to full transparency about the condition of everything we sell. No surprises.
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