Ultimate VoIS
18-Channel Stereo Analog Vocoder with Unmatched Intelligibility in a 2U Rack-Mount Design

The Ultimate VoIS is a high-end, rack-mountable analog vocoder designed for discerning users who prioritize sound quality and signal integrity. Engineered with precision, it delivers the clarity and character typically associated with the legendary Sennheiser VSM201—yet in a modern, more compact 2U format.
This unit is offered fully calibrated and tested, and is delivered as a partially assembled product intended for final self-assembly. Assembly involves attaching the top and bottom covers using a Phillips screwdriver—an easy 10-minute task. No soldering or electronics work is required.
As a boutique operation, I build these units to order. Please allow a lead time of 6 to 8 weeks.
Key Product Features:
- 18 adjustable channels, distributed across left and right outputs for stereo output
- Precision analog filters, designed for consistent, high-fidelity performance
- Line-level inputs with independent gain controls and and peak program meters
- Silence bridging to fill periods of silence with filtered excitation to maintain continuous output
- Slew control for expressive slurring and articulation effects
- Freeze function to lock the spectral envelope, allowing pitch changes while maintaining a fixed sound character
- Voiced/Unvoiced detection to improve intelligibility by substituting pink noise during unvoiced sounds like “s” or “t”
- Balanced XLR connectors on rear panel for professional audio integration
- Fully analog signal path, covering the entire audio chain from input to output for uncompromised fidelity
- No compression or decompression, preserving the natural dynamic range of the input signal for a more transparent and expressive result.
For a hands-on overview, see the Ultimate VoIS User's Manual.
Price: € 3500
