Peavey CS 1200 User Manual

STEREO MODE (UNBALANCED INPUTS) (9) (10) (12) (15)
The CS-1200 is shipped from The factory with jumper plugs inserted in the transformer (10) and crossover (12) accessory sockets. These
jumper plugsare necessary if the low impedance connectors (9) are to be used as inputs for each channel. As indicated in Diagram l.theXLR
connectors are wired in an unbalanced configuration (pins 1 and 2 are ground, pin 3 is input). The unbalanced input configuration is
acceptable whenever relatively short cable runs areemployed or when the associated mixer used has a transformer-coupled output. Under
these circumstances, this configuration will usually provide adequate hum and interference rejection for most environments. Notice that the
jumper plugs in the crossover accessory sockets are required to complete the signal patch to the respective power amp inputs (15) If the
normal unbalanced Vi' 1 power amp input jacks are used instead, then the jumper plugs are not necessary. It is suggested, however, that they
be left in their respective sockets for possible later usage. As with all Peavey amplifiers, the CS-1200 has two power amp input jacks per
channel (15), which offer considerable flexibility in hook-up possibilities. For monaural operation (the same signal is applied to both
channels), the mixer output is plugged in one of the parallel input jacks in one of the channels and a short shielded jumper cable is then
connected between the remaining input jack on that channel to one of the parallel input jacks on the other channel. This technique is called
daisy-chaining and can be repeated many times to include additional amplifier channels requiring the same signal feed.
STEREO MODE (BALANCED INPUTS) (9)
When conditions require the use of a balanced input at theamplifier, the XLR connectors (9) on either or bothchannelscan be converted to
a balanced configuration by removing the jumper plug from the transformer accessory socket (10) and plugging in an input transformer
module (PL-2). The Peavey model PL-2 transformer module is a nominal 1:1 turn ratio-type, resulting in unity gain. As indicated in Diagram 2,
the XLR connector is now wired as a conventional balanced-type input (pin 1 is ground, pin 2 is negative, pin 3 is positive) Again, the jumper
plugs in the crossover accessory sockets are required to completethesignal patch to the respective power anp inputs (15). If balanced stereo
operation is desired, then two PL-2 modules are required. However, for monaural operation, only one PL-2 is needed, and the inputs are
connected together by placing a short shielded jumper cable between oneof the poweramp input jacks (15) on each channel. Obviously,the
XLR connector associated with the transformer module is the balanced system input and the other XLR connector is not used.
BIAMPING (11) (12) (13) (14) (15)
The Peavey CS-1200 patch panel can also be used to biamp and/or provide special equalization capabilities for loudspeaker systems.
Various electronic crossovers and special purpose modules are available in a broad range of frequencies for both Peavey and non-Peavey
loudspeaker systems. More complicated systems, such as stereo biamped, triamped, or even 4-way crossover systems are possible. We
suggest you contact your Authorized Peavey Dealer for details. A typical stereo biamp system will be discussed in this manual.
CS-1200 PATCH PANEL (STEREO MODE)
WITH CROSSOVER AND INPUT TRANSFORMER MODULES
3. aosirivf

Peavey CS 1200 Specifications

General

Channels	2
Signal to Noise Ratio	> 100 dB
Input Impedance	20k ohms balanced, 10k ohms unbalanced
Weight	35 lbs
Dimensions	3.5" H x 19" W x 15.25" D