Our mission
The company was founded 2007 in Zürich, Switzerland by senior software engineer Rolf Eichenseher. We design and develop professional audio equipment which connects different worlds in the industry - always in close collaboration with our customers worldwide, to exactly meet their requirements. Our products are developed in Switzerland and manufactured by our long-term partner in Germany who is responsible for PCB and mechanical assembly, QA and logistics. This one-stop service approach, together with ISO9001 certification, ensures best quality and shortest lead times.Our History
| 2021 | Launch of the Flexiverter range - economic super compact digital converters |
| 2018 | Major firmware upgrade for the MVR-64, providing web & telnet remote control and channel-wise routing |
| 2017 | Launch of the SRC-64 Sample Rate Converter plug-in module |
| 2016 | Launch of the MVR-64 |
| 2015 | First MVR-64 prototypes shown on the Prolight+Sound show in Frankfurt/Germany |
| 2014 | Development done as full-time job to launch MVR-64 project |
| 2013 | Bi-directional ADAT extender ADX-16 launched to fill the gap between ADX-8 and ADX-32 |
| 2012 | Remote Gain Control modkit RGC-24A-M launched. This truly unique product allows you to add remote gain control to non-remotable preamps |
| 2011 | New version (ADX-32B/ADX-64B) with MIDI |
| 2009 | Multi-channel ADAT extender ADX-32A and ADX-64A introduced |
| 2007 | Founding of Appsys ProAudio as part-time business and first product launch (ADX-8, still made today) |
Our Team
| Rolf Eichenseher Design & Development | Martina Eichenseher Marketing & Sales |