Notifier DS-DB Digital Series Distribution BoardThe DS DB Digital Series Distribution Board and its associ ated amplifiers provide bulk amplification capability to the Digital Voice Command (DVC) system while retaining digital audio distribution capabilities. Up to four DS AMP E amplifi ers can supply high level risers spread throughout an instal lation. The DS DB converts digital audio to analog and routes it to audio amplifiers and optional backups. The amplifiers send back high level audio,