The Radial WR-8 is the 3-space rack-only portion of the 8-slot Workhorse designed to fit standard 19″ rack enclosures. It follows the guidelines set out in the Workhorse open-source document (Whos-Doc) to accommodate the very latest Radial modules while being backward compatible with older formats. This means that it will work with pretty much all 500 series modules made today. Regarding the audio performance, unless the WM8 8-channel mixer is added, there is no audio circuitry other than connectors. The WR-8 will not introduce any color, distortion or artefact. As a power supply and connector platform the WM8 employs gold plated 15-pin Edac card-edge connectors on the inside and nickel-silver Neutrik connectors on the back panel for excellent signal transfer. A convenient set of D-Sub connectors has been added to interface with popular workstations. Each slot is equipped with an auto-resetting fuse to protect the system should a faulty module be employed. A 1600 milliamp external supply provides plenty of current to feed the modules and 48V for phantom power. Adding the optional WM*8 mixer brings the WR-8 up to full Workhorse functionality.