The ESPLink output card for card-frame ControlSpace engineered sound processors provides eight channels of digital audio over a single optical cable for sending audio to one or more ESPLink-equipped PowerMatch® configurable professional power amplifiers. The ControlSpace ESP-00 ESPLink 8-channel output card enables card-frame Bose engineered sound processors to send 8 channels of digital audio over an optical cable to one or more PowerMatch amplifiers. These cards allow for simplified audio distribution when devices are co-located in the same equipment rack. It is designed for performing arts venues, health clubs, hotels and conferencing facilities, religious and worship facilities.