Power Amp Output; Bridged Mode; Groundlift Switch - Electro-Voice P1200 precision Bedienungsanleitung

REAR PANEL
POWER AMPLIFIER OUTPUT CONNECTORS
SPEAKON output connectors are provided for the
power amplifier channels A (left) and B (right).The
Bridged Out connector for bridged operation is sealed
with a plastic cover to prevent connection errors.
WARNING: Please make sure not to hook Speakers
up to the BRIDGED OUTput in NORMAL mode or
damage will result.
LIMITER
The time constant of the built-in limiter to avoid
overdriving is adjustable. Position "SLOW" is the
factory preset and this should also be the normal
position. d as LOW-frequency amplifier in active
multi-way systems, the limiter switch should be set to
"SLOW ".

BRIDGED MODE

Slide switch to change from Normal Stereo mode to
Bridged mode. In Bridged mode the built-in power
amplifiers operate in "push- pull" and the double output
voltage from channel A and B appears at the Bridged
output connector. The phases of Channel A and B are
in opposite and therefore the individual channels must
not be used as loudspeaker outputs.
HI-LO-CUT FILTER
This filter attenuates subsonic and high frequency
signals so that the power amplifiers are not modulated
with these signals. This switch should normally
always be in position ON. The OFF position is only for
applications where an upstream unit, e.g. a crossover
or a equalizer, has integrated HI-Cut and LO-Cut
filters.

GROUNDLIFT SWITCH

Hum loops can be avoided with the groundlift switch.
If the power amplifier is operated together with
other units in one 19" rack, the switch should be in
GROUNDED position. If the power amplifier is used
with units which have different earthing potentials,
the switch should be adjusted to the UNGROUNDED
position.
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