Peavey CS 1200X User Manual download pdf (Page 7)

MODE SWITCH (10)

The mode switch is located on the “back-porch” next to the channel input jacks. This switch

converts the CS

1200X

from normal stereo mode to bridge mode. Bridge-mode operation is very

popular for commercial sound distribution systems

(70/l

00 volt lines).

WARNING: In bridge mode, the CS

1200X

is capable of delivering 1200 W RMS into 8 ohms

and 1800 W RMS into 4 ohms. Always be very certain that the associated loudspeaker system

can handle this power level reliably. Also, be advised that in most crossover applications,

accidental switching to the bridge mode could destroy the speaker system. Specific applications

of the bridge mode will be covered later in this manual.

LOW-Z INPUTS (11)

Conventional three-pin, female XLR input jacks

are

provided, which can be used as either the

channel inputs or the crossover inputs, depending upon what has been plugged into the crossover

socket (14). Further, this XLR input is balanced or unbalanced, depending upon what is plugged

into the transformer socket (12). When the (PL-2) line-balancing transformer is used in socket

(12)

this XLR input becomes fully TRANSFORMER-BALANCED, with pin

as the positive

input and pin

as the negative input. When a blank plug (PL- 1) is inserted in socket

(12),

this

XLR input becomes unbalanced, with pin

as positive input and pin

as ground. If a

PL-MODULE ELECTRONIC CROSSOVER is plugged into socket

(14),

the XLR input system

drives the crossover, but if a blank plug (PL-1) is inserted in socket

(15),

the XLR input system

is connected directly to the channel power amp input.

TRANSFORMER RECEPTACLES (12)

These receptacles only receive the optional (PL-2) line-balancing transformer. When conditions

exist that demand the usage of a TRANSFORMER-BALANCED XLR at the input of a power

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Peavey CS 1200X User Manual Page 7