Temecula DSP MDV-II
The studio workhorse that defined affordable digital effects.
100 Programs. One Chip. Unlimited Character.
There are two types of producers: those who think this reverb sounds "too colored," and those who refuse to mix a track without it. We meticulously recreated this cult-classic unit because sometimes, perfection is boring. You use it when you want your synth to float in space, your guitars to smear into a lush nostalgic wash, and your mix to have a sound that's unmistakably its own.
I played an acoustic guitar to it and then it's basically an Alesis Midiverb II, it's the reverse reverb program. If I ever had a secret weapon it's the Alesis.
— Kevin Shields, My Bloody Valentine (Tape Op)
Hear the Character
Each source includes a dry (unprocessed) sample followed by various programs from the MDV-II across reverb, gate, reverse, flange, chorus, delay, and multi-tap effects.
Features
Seven Categories of Classic Effects
All 100 factory programs are included, organized into seven categories that cover every effect type the original hardware offered.
| Category | Programs | Description |
|---|---|---|
| Reverb | 01–29 | Small, medium, and large rooms from bright to dark, plus extra-long ambient decays |
| Gate | 30–39 | Slow and fast gated reverbs for punchy drums and percussive sources |
| Reverse | 40–49 | Reverse reverbs and regenerated reverse effects for atmospheric swells |
| Flange | 50–59 | Triggered flanges and stereo panning flanges with triangle-wave LFOs |
| Chorus | 60–69 | Light to deep chorus with sine-wave modulation for thickening and shimmer |
| Delay | 70–89 | Fixed delays from 35ms to 460ms, multi-tap, and regenerated echo up to 4 seconds |
| EFX | 90–99 | Stereo generation, thickening, multi-tap ambience, and frozen flange |
DASP-16 Engine Emulation
The heart of the MidiVerb II is the custom DASP-16 (Digital Audio Signal Processor) chip designed by Keith Barr. The MDV-II faithfully emulates this chip at the instruction level, running all 128 instructions per sample at the original 23,437.5 Hz internal sample rate. Every program produces the same output as the original hardware — including its characteristic warmth and bandwidth-limited charm.
Vintage Mode
Toggle between two output filter modes with the valve icon in the toolbar. Vintage mode engages a three-stage analog reconstruction filter chain modeled after the MidiVerb II hardware output path — a passive RC low-pass at 7,204 Hz followed by two Sallen-Key stages — reproducing the dark, warm tone of the original unit. With vintage mode off, a clean 4th-order Butterworth filter at 11,000 Hz provides transparent anti-aliasing for a brighter, more open sound. The setting is saved per track.
Simple, Authentic Controls
Input Level, Mix, and Output Level knobs give you precise control over signal flow. A two-digit numeric keypad and arrow buttons provide direct program selection, just like the original hardware. Drag the LED display to scroll through programs. All parameters are fully automatable in your DAW.
The History of the MidiVerb II
Keith Barr, co-founder of Alesis and designer of the DASP-16 chip.
In the mid-1980s, Alesis set out to democratize professional audio effects. Digital reverb units from Lexicon and AMS cost thousands of dollars and were found only in top-tier studios. The original MidiVerb broke new ground by offering digital reverb in an affordable, compact format. The MidiVerb II followed shortly after, expanding the concept with a dramatically larger program library, improved sound quality, and a more versatile control set.
The MidiVerb II found its way into countless home and professional studios throughout the late 1980s and 1990s. Its combination of instant-recall preset access, MIDI integration, and genuinely musical effects made it a workhorse for tracking and mixing alike. The gated and reverse reverb programs became particularly popular for drums, while the chorus and flanging algorithms found a home on guitars, keyboards, and vocals.
At the heart of the MidiVerb II sits the DASP-16 — a custom digital audio signal processor designed by Alesis specifically for this unit. The chip implements a delay-line architecture using 16 kilobytes of dynamic RAM as a circular buffer. Programs are defined as sequences of 128 instructions that read, sum, and write delay taps at precise time offsets within this buffer. This single-chip design is what allowed Alesis to offer the MidiVerb II at its breakthrough price.
The MDV-II plugin faithfully reproduces this architecture at its native sample rate of 23,437.5 Hz, preserving the warm bandwidth and subtle character that made the hardware a studio staple. The unit's characteristic warmth — a product of its limited bandwidth and integer arithmetic — became part of its appeal rather than a limitation.
© 2026 Temecula DSP.
SST-282, SST-206 and Stargate 626 are model numbers originally used by Ursa Major and Seven Woods Audio. Temecula DSP is not affiliated with the estate of Christopher Moore, Ursa Major, or Seven Woods Audio.
DP/4 is a trademark of Creative Technology Ltd. Temecula DSP is not affiliated with, endorsed by, or sponsored by Creative Technology Ltd.
"Alesis" and "MidiVerb" are trademarks of inMusic Brands, Inc. Temecula DSP is not affiliated with, endorsed by, or sponsored by inMusic Brands, Inc.