Operation Manual; 4.3 Back Panel Controls; L. Output Connectors- Page 13

page 13

CTs Multi-Channel 

Power Amplifiers

Operation Manual

4.3 Back Panel Controls
and Connectors

Note: CTs 8200 is shown. Some CTs 
4200 features are in different locations.

K. AC Power Cord Connector

Standard IEC type 320 inlet.
120V models: 15-amp.
220-240V models: 10-amp.
Voltage is indicated above IEC inlet.

L. Output Connectors

One four-pole terminal strip for every two chan-
nels with touch-proof cover. Accepts up to 10 
AWG terminal forks. To connect outputs, first 
remove the touch-proof cover plate covering 
the terminal strip by removing the screw which 
holds it in place.

M. Accessory Panel

CTs 4200: Accepts an optional IQ-MC4A or 
VCA-MC4A  module.

CTs 8200: Accepts an optional IQ-MC8 or
VCA-MC8 module (explained in Section 5.3.1, 
Control Modules).

N. Channel Level Controls

One 21-position detented rotary potentiometer 
per channel, ranging from infinity (-70 dB) to
0 dB attenuation. Refer to Section 5.2.4 for pre-
cise dB attenuation increments for each detent.

O. Input Connectors

Removable Phoenix-style barrier connectors 
for balanced input. 

P. Mode Switch

Used on each consecutive pair of channels, this 
four-position switch is used to select the ampli-
fier’s mode of operation: Dual 8/4 ohms, 
Dual 70V, Bridge-Mono 16/8 ohms, and 
Bridge-Mono 100V. 

IMPORTANT: Be sure to power off the 
amplifier before change the Mode-
switch setting.

 If this is not done, the Bridge 

light will flash to indicate that the power must 
be cycled off and back on to reset the mode.

Q. Cooling Vents

Front-to-rear forced airflow.

4 Operation

Figure 4.2   CTs 8200 back panel (shown with touch-proof cover removed).