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5.
Outputs
5.1
POWER OUTPUT
The power output is balanced and off-ground potential. The output is factory-configured for the connection of 100V
loudspeaker systems. Connection has to be performed by inserting the supplied 5-pole plug into the power output
socket (17). Switching the output voltage to 70V, 50V or to low impedance operation (4 ohms) is possible using the
plug-in bridge B411 on the printed board assembly 84187 (DPA 4120) respectively 84175 (DPA 4140) (see also
paragraph 7).
5.2
POWER OUTPUT for 100V (70V or 50V) loudspeaker systems
If the distance between the amplifier and the loudspeakers exceeds 50 m, it is recommended to operate the speaker
systems using 100V matching transformers, to reduce line attenuation. This additionally offers a simple way of
distributing the output power capacity. In this way it is possible to connect a maximum of as many loudspeaker
systems as it takes until the total power consumption of the entire speaker network equals the power output capacity
figure 1 connections of the input sockets
figure 2 LF cable for coupling two amplifiers DPA 41xx
figure 3 connection of the power output
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