Every expansion unit can support up to 60 stations divided on six lines (never use more than 30 stations on each line). Adding four expansion units, the system can control up to 254 stations.

Technical specifications

Inputs	6 - Microphone Remote, DIN8 Connector (Socket)
Frequency range	20 Hz - 19 kHz
THD	< 0,05 %
Signal to Noise Ratio	>75 dB
Power	Network ~ 230 V, 50/60 Hz
Power consumption	350 W
Size (WxDxH)	482 x 353 x 90 mm
Rackmount	2U
Weight	10,2 kg