Alesis

Explore 17 Alesis vintage synthesizer models — specs, production history, reviews, and market values in the VTA archive.

Analog Synthesizers

• Andromeda A6 — 16-voice, 16-part multi-timbral analog synthesizer with dual filters per voice and extensive physical control.

Digital Synthesizers

• QS8 — A flagship 88-key digital synthesizer with weighted hammer-action keys, released by Alesis in 1996.
• QuadraSynth — A 76-key digital synthesizer introduced by Alesis as their first major synth, featuring 64-voice polyphony and PCM-based sound generation.

Drum Machines

• DM5 — 16-voice drum module with Dynamic Articulation™, 540 stereo drum sounds, and 12 trigger inputs
• HR-16 (1987) — A 16-bit drum machine with 49 built-in sounds, released by Alesis as a MIDI drum sequencer and sound generator.
• SR-16 — Portable 16-voice drum machine with velocity-sensitive pads, floppy disk storage, and dynamic articulation for expressive playing.
• SR-18 — A 24-bit drum machine and three-part sequencer with dynamic articulation and built-in effects

Effects Processors

• Microverb — Budget digital reverb processor introduced in 1986 with 16 non-editable presets and stereo I/O in a compact one-third rack case.
• Microverb II — A 16-bit stereo digital reverb processor released in 1988 with 16 non-editable presets and solid metal construction.
• MIDIverb — 18-bit dual-channel effects processor with MIDI control, introduced as an affordable alternative to high-end reverb units.

Rack Effects

• MIDIverb II — 16-bit rackmount reverb and multi-effects processor with 99 presets, MIDI control, and a distinctive 1987 digital character

Sequencers

• MMT8 — A dedicated 8-track MIDI sequencer with pattern-based workflow and tactile real-time control.

Workstations

• Fusion 6HD — 61-note semi-weighted keyboard workstation with 4 synthesis types, 8-track hard disk recording, and expandable sampling
• Fusion 8HD — Professional workstation synthesizer with 88-note weighted keyboard, multi-synthesis engine, and 8-track 24-bit hard disk recording.

Other Models

• Alesis — Vintage Synthesizer — Explore 17 Alesis vintage synthesizer models — specs, production history, reviews, and market values in the VTA archive.
• ADAT — Digital 8-track recorder using S-VHS tape, capable of sample-accurate synchronization across up to 16 units for 128-track recording.
• ADAT HD24 — 24-track hard disk recorder with 24-bit resolution, designed to replace tape-based ADAT systems.
• ADAT XT — Alesis ADAT XT (1995) — 8-track digital multitrack recorder with 92dB dynamic range, S-VHS tape, and ADAT optical I/O. A studio workhorse that changed project recording.
• Andromeda A6 — 16-voice, 16-part multi-timbral analog synthesizer with dual filters per voice and extensive physical control.
• DM5 — 16-voice drum module with Dynamic Articulation™, 540 stereo drum sounds, and 12 trigger inputs
• Fusion 6HD — 61-note semi-weighted keyboard workstation with 4 synthesis types, 8-track hard disk recording, and expandable sampling
• Fusion 8HD — Professional workstation synthesizer with 88-note weighted keyboard, multi-synthesis engine, and 8-track 24-bit hard disk recording.
• HR-16 (1987) — A 16-bit drum machine with 49 built-in sounds, released by Alesis as a MIDI drum sequencer and sound generator.
• Ion — Alesis Ion (2003–2007) — 49-key virtual analog synth with 30 knobs, dual filters, 20-slot modulation, and Quadraverb-derived effects. A hands-on powerhouse.
• Microverb — Budget digital reverb processor introduced in 1986 with 16 non-editable presets and stereo I/O in a compact one-third rack case.
• Microverb II — A 16-bit stereo digital reverb processor released in 1988 with 16 non-editable presets and solid metal construction.
• MIDIverb — 18-bit dual-channel effects processor with MIDI control, introduced as an affordable alternative to high-end reverb units.
• MIDIverb II — 16-bit rackmount reverb and multi-effects processor with 99 presets, MIDI control, and a distinctive 1987 digital character
• MMT8 — A dedicated 8-track MIDI sequencer with pattern-based workflow and tactile real-time control.
• QS8 — A flagship 88-key digital synthesizer with weighted hammer-action keys, released by Alesis in 1996.
• QuadraSynth — A 76-key digital synthesizer introduced by Alesis as their first major synth, featuring 64-voice polyphony and PCM-based sound generation.
• Quadraverb — 1U rackmount digital multi-effects processor with simultaneous reverb, delay, EQ, and pitch effects, introduced in 1989.
• SR-16 — Portable 16-voice drum machine with velocity-sensitive pads, floppy disk storage, and dynamic articulation for expressive playing.
• SR-18 — A 24-bit drum machine and three-part sequencer with dynamic articulation and built-in effects