INSTALLED SOUND
• 7
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SPECIFICATIONS
Performance
Frequency Response (at 1 watt, 20 Hz - 20 kHz):
±0.5 dB.
Phase Response (at 1 watt, 10 Hz - 20 kHz): ±35°.
Signal to Noise Ratio (below rated power, 20 Hz to
20 kHz): 100 dB unweighted.
Total Harmonic Distortion (THD) at 1 watt, from
20 Hz to 20 kHz: < 0.05%.
Intermodulation Distortion (IMD) 60 Hz and 7 kHz
at 4:1, from 163 milliwatts to full bandwidth power:
< 0.05% (typical).
Damping Factor: 10 Hz to 400 Hz: >180.
Crosstalk (below rated power, 20 Hz to 1 kHz):
> 80 dB.
Common Mode Rejection (CMR) (20 Hz to 1 kHz):
> 50 dB.
DC Output Offset (shorted input): < ±5 mV.
Input Impedance (nominal): 20 kilohms balanced,
10 kilohms unbalanced.
Maximum Input Level (before input compression):
+20 dBu.
Load Impedance: (Note: Safe with all types of
loads)
Stereo: 4/8 and 25 ohms (70V).
Bridge Mono: 8/16 and 50 ohms (100V).
Voltage Gain (at maximum level setting), 1.4V
sensitivity,
4/8 Ohm Operation: 20:1 (26 dB).
70V Operation: 50:1 (34 dB).
100V Operation: 71.4:1 (37 dB).
AC Line Voltage and Frequency Configurations
Available (±10%): 120V/60 Hz, 220/230/240V/50
Hz.
Power Draw at Idle (120VAC mains, all channels in
4/8 ohm mode): 58W.
C
rown’s CTs Multi-Channel Series offers wide flexibility for a wide range of installed sound applica-
tions. CTs Multi-Channel Series amplifiers offer independent selection of high- and low-impedance
operation for each channel pair, making these amps ideal for multi-zone installations.
Power Draw at Idle (120VAC mains, all channels in
70V mode): 77W.
Front Panel Controls and Indicators
Indicators: Bridge, Ready, Signal, Clip, Thermal,
Fault, Data, Power.
Power Switch: Amplifier is on when the switch is
in the IN position.
Back Panel Controls and Connectors
AC Power Cord Connector: IEC inlet, type 320;
100/120VAC units: 15A.
220/230/240VAC units: 10A.
Voltage is indicated above IEC inlet.
Output Connectors: One four-pole terminal strip
for every two channels with touch-proof cover.
Accepts up to 10 AWG terminal forks.
Accessory Panel: CTs 4200 accepts an optional
VCA-MC4A module. CTs 8200 accepts an optional
VCA-MC8 module.
Channel Level Controls: One 21-position detented
rotary potentiometer per channel, ranging from
infinity (–70 dB) to 0 dB attenuation.
Input Connectors: Removable Phoenix-style barrier
connectors for balanced input.
Mode Switch: Used on each consecutive pair of
channels, this four-position switch is used to select
the amplifier’s mode of operation: Dual 8/4 ohms,
Dual 70V, Bridge-Mono 16/8 ohms, and Bridge-
Mono 100V.
Protection
CTs Multi-channel Series amplifiers provide
extensive protection and diagnostic capabilities,
including Thermal Level Control (TLC), fault, FIT
protected circuitry, AC under/over voltage protec-
tion, power fuse, and in-rush limiting
Construction
Ventilation: Front-to-rear forced airflow.
Continuously variable speed fans (four in the
CTs 8200, one in the CTs 4200) direct the airflow
through the amplifier for cooling.
Dimensions
CTs 4200: EIA Standard 19-inch (48.3-cm) rack
mount width (EIA RS-310-B), 3.5-inch (8.9-cm)
height and 16.25-inch (41.3-cm) depth behind the
mounting surface.
CTs 8200: EIA Standard 19-inch (48.3-cm) rack
mount width (EIA RS-310-B), 5.25-inch (13.3-cm)
height and 16.25-inch (41.3-cm) depth behind the
mounting surface.
Weight
Net Weight:
CTs 4200: 27 lb 8 oz (12.5 kg);
CTs 8200: 36 lb 6 oz (16.5 kg).
Shipping Weight:
CTs 4200: 32 lb (14.5 kg).
CTs 8200: 47 lb (21.3 kg).
System Solutions
VCA-MC4A: VCA module for CTs 4200A.
VCA-MC8: VCA module for CTs 8200.
VCA modules allow remote volume control.
Accessories
Wall-mount level control panels for use with
VCA module:
1-VCAP: 1-gang panel with 1 VCA channel
volume control.
4-VCAP: 2-gang panel with 4 VCA channel
volume controls.
Regulatory Certifications
Other Applications
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