Description Two pairs of speakers can be connected. These can be connected individually (A,B,A &B). The amplifier has a built-in equalizer, with which the sound can be adjusted in 7 classes (64Hz, 150Hz, 400Hz, 1kHz, 2.5kHz, 6.2kHz, 15kHz), each in 10 stages. The amplifier also has an "Alphanumeric Function Mode Display". 4 volume levels and equalizer settings can be saved. The amplifier functions as a switching center at the same time via the three power connections. If the amplifier is switched off, all devices connected to the amplifier are also switched off.