DSP Accessories This category includes some optionally available products to be used additionally at the installation of digital signal processors or DSP amplifiers. DSP Accessories GZDSP BT-BOX Interface for wireless music streaming Read more GZDSP REMOTE Remote control for GZDSP products Read more GZDSP PRO-REMOTE Remote control for GZDSP products Read more GZDSP BT-STICK USB interface for wireless music streaming Read more