Multifunctional amplifier that can be mounted in an EIA-Standard equipment rack (3-unit size). The unit comes with the speaker output section which has an internal attenuator and 6-output selector. In addition, the unit features the surveillance function which automatically checks the system for failures. According to: EN-60849 and EN54. Dimensions: 482 x 132,6 x 407 mm (3 u rack). Weight: 16,5 kg.