GENERAL PURPOSE BROADCAST
EXPANSION FUNCTIONS
4
-5-
4
Zone 1
Zone 2
Zone 3
Zone 4
Zone 5
VM-2240
BGM Player
ZONE-1
ZONE-2
ZONE-3
ZONE-4
ZONE-5
Speaker out
PA-3640VB
100k
Ω
1k
Ω
3W
10k
Ω
100k
Ω
1k
Ω
3W
10k
Ω
100k
Ω
1k
Ω
3W
10k
Ω
100k
Ω
1k
Ω
3W
10k
Ω
1/100 attenuator circuit
Amplifier Expansion
[Operation setting]
The system can be configured for large system applications by connecting other PA amplifier to the VM amplifier's
speaker outputs. The following system examples provide an output of 1,680 W.
Because the expansion amplifiers are connected to the speaker outputs directly ahead of the VM-2240's zone
selector, the VM-2240's zone selector function can be used without being affected.
[Connection]
Connect the VM-2240's speaker output to an external PA amplifier input by way of a circuit that reduces
the gain to 1/100.
The output of the VM amplifier[(120 W in the case of the VM-2120) (240 W in the case of the VM-2240)]
can be expanded.
[1/100 attenuator circuit]
NOTE: When installing the SV-200M in the VM-2240 to monitor
the status between the VM-2240's speaker output and the
PA-3640VB's input, be sure to install a 3W 10k resistor, while the
attenuator is made up of 1/2W 100k resistor and 1/2W 1k resistor.
The YA-1000A will be required when monitoring the status between
the PA-3640VB's speaker output and the speaker.
