The Fiberlink 4160 Series digitally transmits sixteen independent audio channels over one multimode or single mode fiber at 850, 1310 or 1550 nm, with optional redundancy. It is ideal for Rental, Staging, Theater, Stadiums, Theme Parks and Broadcast applications. Features: System consists of transmitter and receiver unit No adjustments; pure digital processing and transmission Optional redundant optical input/output 24 bit/96 kHz sampling; maximum audio level +24 dBu 20 Hz to 20 kHz frequency response Line level, balanced or unbalanced audio operation Indicator LEDs monitor audio signals and power Wide range internal power supply Unit stands 1 RU high Rackmount ears are included.