system has been designed to meet commonly requested public
address facilities. The SM30 sound management system comprises
a control centre, callstations and SQ45 power amplifiers.
callstation including a high quality cardiod electret condenser
microphone allows the operator to route and transmit calls.
Up to 36 loudspeaker zones can be selected all together, with
several zones combined, or individually by typing in the zone
The SM30 sound management system is intended for use with
2 separate channels. One channel will amplify the 'call' signal
and the other one the 'music' signal. This allows the music
to be transmitted without interruption, when a call is made
to other loudspeaker zones. To fulfill the need of amplified
power, more SQ45 power amplifiers can be installed.
Extension unit >>
SM30 extension unit is intended to function as an amplifier
surveillance unit with spare amplifier switching, as an audio
monitoring facility and as a volume override relay supply
unit. Two groups of 5 amplifiers can be connected: 4 amplifiers
with 1 spare amplifier which will be surveilled. However,
it is is possible to connect 8 amplifiers plus 1 spare amplifier.