Amplification unit (EN54-16: 2008 certificate) from 480 W RMS, frequency response 30 / 20kHz, output voltages at 50/70 / 100V, power supply 230/115 Vac and 24 Vdc, high / low tone controls, regulation general volume, line input, sockets for Rj45 base connections (CAT5 SFTP). Equipped with protection against overloads and short-circuits (peak current limiting circuit, thermal switch located inside the power transformer, resettable thermal switch placed in contact with the power amplifier dissipator, mains fuses), fan cooling with automatic speed control.