Access Virus TI Keyboard (2005–2009)
61-key virtual analog synthesizer with dual-DSP architecture, USB audio/MIDI integration, and VSTI plugin for DAW use
Overview
The Access Virus TI Keyboard is a 61-note virtual analog synth. Access Music of Dortmund, Germany released it in October 2005. It does digital subtractive, wavetable, FM, and voice formant synthesis on dual-DSP Motorola 56k family processors. A VSTI plugin ties it into a DAW, so you can mix hardware and software in one workflow. The keys are velocity-sensitive with aftertouch, and there are mod and pitch wheels and a 128x32-pixel monochrome LCD for menus. It supports up to 80 voices of polyphony and 16-part multitimbrality, with 3 oscillators and 1 sub-oscillator per voice.
Specifications
| Keyboard | 61-note keyboard with velocity response, aftertouch, mod and pitch wheels |
| Connectivity | USB 2.0 port for computer connectivity |
| USB Audio Quality | 24-bit/48kHz |
| Effects | Distortion, chorus, delay and reverb effects |
| Modulation Matrix | 6 Slots (6 sources, each routable to 3 destinations) |
| Polyphony | Up to 80 voices under average conditions |
| Multi Timbral Capacity | 16-part |
| Oscillators per voice | 3 |
| Sub-Oscillators per voice | 1 |
| Display type | Monochrome LCD, 128x32 pixels |
| Audio out Analogue | 6 x 1/4" (6.35mm) |
| Audio out Headphones | 1 x 1/4" (6.35mm) preamplified |
| Audio out Digital | 1 x coaxial (S/PDIF) |
| Audio in Analog | 2 x 1/4" |
| Audio in Digital | 1 x coaxial (S/PDIF) |
| DAC | 24-bit, 192kHz |
| ADC | 18-bit, 192kHz |
| Voltage | 100–230(250)V, 50–60Hz |
Design
The case is black metal with mahogany-style wooden side panels and an illuminated Access logo on the rear. The DSP chips model analog oscillator behavior, filter saturation, and imperfections. The hypersaw oscillators can stack up to 9 sawtooth waves per oscillator, and the wavetable oscillator has 72 wavetables plus a sine wave. The filters are high-pass, low-pass, band-pass, and band-reject. There are also 192 built-in FX units and a scalable USB link for DAW integration.
Context
The Virus TI Keyboard succeeded the Virus A, B, and C models and was part of a three-model TI series, replacing the Virus KC. It introduced "Total Integration" (TI), which gave it direct USB audio and MIDI communication with DAWs. That was a shift toward computer-integrated hardware synthesis. The Virus series became known for aggressive, thick analog modeling sounds used in trance, drum and bass, progressive house, and psytrance. Ferry Corsten, Armin van Buuren, and BT used earlier models.
Market
Working units currently sell for $1,400 to $2,500 USD. One non-functional unit was listed for £100, and repair quotes from Access Music ran from €100 to €600. Common problems are no sound or no USB communication even though the controls work, note dropouts when running complex patches over USB, and the VSTI plugin sometimes going unrecognized until you reconnect or reset.
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