RCF MT 7308, User Manual

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ENGLISH
MU 7100EN (the main unit of the RCF DXT 7000EN system) has eight 80 W amplifiers
inside.
In case of higher power is needed, it is possible to create ‘locked groups’ to get 160 W,
240 W or even 320 W outputs. Yet, ‘locked groups’ reduce the available channels.
The MT 7308 universal monitoring unit makes it possible to integrate external (constant
voltage) amplifiers into the monitored DXT 7000EN voice evacuation system.
This is a big advantage, especially when a system has a lot of lines, each having a
considerable loudspeaker load.
It is possible to use any professional single / multichannel amplifier equipped with a 0 ÷
6 dBu balanced audio input and 50/70/100 V constant voltage output(s).
One or two MT 7308 can be linked to each MU 7100EN main unit.
One unit can be used for up to eight external amplifiers (and its loudspeaker line
monitoring).
Max. power for each external amplifier: 500 W.
The eighth amplifier can be set (through the dip-switch no.8) as spare that automatically
replaces a faulty one.
Its size is half 19” rack unit (9.5”), two
MT 7308 can be installed into 19” 1U
rack.
The MT 7308 can be set by using
the PC configuration software and
communicates with the host MU
7100EN via ‘local bus’, from which
receives the power supply voltage as
well.
External amplifier audio inputs can be
linked to the MU 7100EN loudspeaker
outputs through dedicated attenuators
that reduce signal levels to 0 dBu.
An ‘end of line’ unit needs to be linked
to the end of each loudspeaker line to
get a proper line monitoring.
RCF S.p.A. thanks you for purchasing this product, which has been designed
to guarantee reliability and high performances.
DESCRIPTION
Figure 1: system block diagram, all channels used for ext. amplifiers
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100 V / 70 V
LOUDSPEAKER LINES
MT 7308 MU 7100EN
LOCAL BUS
EXTERNAL
AMPLIFIERS
ATTENUATORS
0 dB
0 dB
0 dB
0 dB
0 dB
0 dB
0 dB
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