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Power Amplifier Outputs
The power amplifier’s channel A (left) and channel B (right) outputs
are carried out as SPEAKON output connectors.
The bridged-out connector conducting the output signal in bridged
mode operation is protected by a plastic cover to avoid inadvertently
plugging a speaker cable into the wrong connector.
BRIDGED MODE
When the bridged mode switch is engaged you will have to use the
channel A input. The channel B input is out of function. The signal
gets internally inverted and fed to the channel B power amp. The two
amplifiers A+B are now used in push-pull operation providing the
double output voltage at the BRIDGED-OUT connector.
The regular output voltages of the power amplifiers A and B are still
present at the individual output connectors CHANNEL A and
CHANNEL B but in respect to the inverted phase, using these
signals is not recommendable.
Bridged mode operation on loads of 2 ohms is not admissible.
GROUND-LIFT SWITCH
The ground-lift switch is meant to help you in avoiding ground noise
loops. Whenever the power amplifier is installed in a 19" rack
system being operated together with other equipment, the recom-
mended setting of the switch is the GROUNDED position. In case
the power amplifier is used together with appliances that are connec-
ted to different ground potentials, the recommended setting is UN-
GROUNDED.
REAR PANEL
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