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Operation Manual
CTs Power Amplifi ers
page 44
Choosing the Right Module
To order accessory modules for your amplifi er,
please refer to the model tag (located on the back
panel of the amplifi er) for your amplifi er’s specifi c
model number. Then refer to the chart below to select
the correct accessory for your requirements.
VCA MODULE
CTs 4200 VCA-MC4
CTs 4200A VCA-MC4A
CTs 8200
VCA-MC8
CTs 8200A
VCA-MC8
Wall-Mount level control panels for use with
VCA module:
1-VCAP: See Figure 5.4. Used in conjunction with a
VCA-MC module, this is a single-gang panel
pro viding remote volume control for one or more
CTs amplifi er channels. The potentiometer on the
panel is wired directly to one of the VCA connectors
on the VCA-MC.
4-VCAP: See Figure 5.5. This is a two-gang panel
providing remote volume control for four or more
CTs amplifi er channels. The potentiometers on the
panel are wired directly to the respective VCA
con nector on the VCA-MC.
Refer to the VCA-MC Operation Manual for wiring of
the single or multiple channel level control.
Your amplifi er may have come with a VCA-MC
module already factory-installed, or your choice of
MC modules can be easily added to the amplifi er by
any authorized Crown Service Center. Contact
Crown Technical Support for more details.
5.3.2 Input Sensitivity
The CTs 4200 and CTs 8200 have a fi xed input
sen sitivity of 1.4V. A service option is available for
other input sensitivities.
Figure 5.3 VCA-MC8 Module
Figure 5.5 4-VCAP Module
5 Advanced Features
and Options
Figure 5.4 1-VCAP Module
5.3 Options
Below are some available options. For current
options, visit the Crown website at www.
crownau dio.com.
5.3.1 Control Modules
VCA-MC (VCA module): See Figure 5.3. Pro vides
independent remote level control for each channel.
4-pin removable Phoenix-style barrier connectors
provide the +10VDC control voltage, ground, and
control lines for two amplifi er chan nels. Thus, 4-
channel amplifi ers use two connec tors; 8-channel
amplifi ers use four connectors.