The RME CONVERTER1 is a dedicated, high-quality signal converter designed to transparently bridge the two primary physical layer standards for MADI (Multichannel Audio Digital Interface) transmission: optical (using duplex SC connectors) and electrical coaxial (using BNC connectors). This compact, single-space rack unit provides six independent, bi-directional conversion channels, allowing it to simultaneously convert up to six separate MADI streams from optical to coaxial or vice versa. Its primary function is to enable seamless integration of MADI-equipped devices that use different connection types within large-scale audio infrastructures, such as those found in broadcast trucks, recording studios, live sound touring racks, and post-production facilities. By performing this physical layer conversion without affecting the digital audio data or timing, it ensures interoperability between consoles, stageboxes, routers, and recorders that may use either optical or coaxial MADI interfaces.

The converter is engineered for absolute signal integrity and reliability. It operates transparently at all standard MADI sample rates (up to 96 kHz for 64 channels or 192 kHz for 32 channels) and supports both 56- and 64-channel formats. The unit is entirely passive in its conversion process for most signals, meaning it does not require external synchronization or sample rate conversion; it simply translates the optical photons to electrical signals (and vice versa) while carefully preserving the embedded clock and data. This results in zero added latency and no generation loss. Each of the six channels is independent, with clear labeling and status LEDs to indicate signal presence and activity for both input and output sides, facilitating quick troubleshooting and system verification.

Built with RME's renowned quality, the CONVERTER1 features a robust metal housing, reliable internal components, and efficient powering from a standard external AC adapter. Its straightforward, no-configuration design makes it a set-and-forget solution for system integrators. By solving the common physical interconnect problem in MADI-based systems, this converter provides essential flexibility, allowing engineers to utilize the advantages of both optical (for long, electrically isolated runs) and coaxial (for robust, standard video cable-based patching) MADI connections within the same ecosystem. It is a critical utility device for any professional audio installation relying on the MADI protocol for high-channel-count audio transport.