Dynacord S 900 Manuale d'uso - Pagina 6

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R E A R P A N E L

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 re-

commended setting of the switch is the GROUN-

DED position. In case the power amplifier is used

together with appliances that are connected to

different ground potentials, the recommended set-

ting is UNGROUNDED.