The PB-800 Industry amplifier is an ultra-reliable, high-power, 8 channel (100W per channel) audio power amplifier designed for use in critical systems. It is designed to drive 100 V line loudspeaker systems and is equipped with on-board DSP allowing gain, EQ, delay and other parameters to be controlled from a remote location using WinControl software, via RS-485 or CobraNet® or DANTE™. The amplifiers are fully monitored, with automatic fault detection and reporting. Inputs may be either analogue audio (standard 0 dBV balanced audio) or digital audio via CobraNet® or DANTE™. When used in conjunction with Duran Audio’s OpSTImizer® service the PB amplifiers can provide significant improvements in speech intelligibility within a tunnel.