Specifications
INSTALLED SOUND
9
System Solutions:
IQ-MC4A: IQ module for CTs 4200;
IQ-MC8: IQ module for CTs 8200;
VCA-MC4: VCA module for CTs 4200;
VCA-MC8: VCA module for CTs 8200.
IQ modules allow remote monitoring and control.
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.
Specifications
Performance
Frequency Response (at 1 watt) 20 Hz to 20 kHz: ±0.5 dB.
Phase Response (at 1 watt) 10 Hz to 20 kHz: ±35°.
Signal-to-Noise Ratio, unweighted, below rated power
(20 Hz to 20 kHz): 100 dB.
Total Harmonic Distortion (THD) at full rated power, from 20 Hz to 20
kHz: < 0.1%.
Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1, from 163 milli-
watts 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.
Voltage Gain (at maximum level setting) 1.4V sensitivity
8/4-ohm operation: 20:1 (26 dB).
70V operation: 50:1 (34 dB).
100V operation: 71.4:1 (37 dB).
Common Mode Rejection (CMR) (20 Hz to 1 kHz, typical): > 50 dB.
DC Output Offset (Shorted input): < ±5 mV.
Maximum Input Level before input compression: + 20 dBu.
Power
Load Impedance: Safe with all types of loads.
Stereo: 4/8 and 25 ohms (70V) .
Mono: 8/16 and 50 ohms (100V).
Required AC Mains: 120VAC, 60 Hz and 220/230/240VAC, 50 Hz.
Power Draw at Idle (120VAC mains, all channels in 4/8 ohm mode):
70W.
Front Panel Indicators: Bridge Mode, Ready, Signal, Clip, Thermal,
Fault, Data, Power.
Back Panel Controls and Connectors:
Power Cord Connector: IEC.
Reset Switch: Resets the power circuit breaker.
Channel Level Controls: 21-position detented, one per channel.
Level Attenuation: Minus infinity (–70 dB) to 0 dB gain.
35-Hz High-Pass Filter: A fixed 35-Hz highpass filter per channel pair is
automatically inserted when the mode switch is set to either of the
constant-voltage settings. The high-pass filter corner frequency can be
set to 70 Hz, or bypassed, with a service option.
Mode Switch: Used on each consecutive pair of channels, this four-posi-
tion 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.
Input/Output
Input Connectors: Removable Phoenix™-style barrier connectors for bal-
anced input.
Input Impedance: (nominal):
20 k ohms balanced, 10 k ohms unbalanced.
Output Connectors: One four-pole touch-proof terminal strip for every two
channels, with touch-proof cover. Accepts up to 10 AWG terminal
forks.
DC Output Offset (shorted input): < ±2 millivolts.
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 protection, power fuse, and
inrush 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 lbs. (21.3 kg);
Crown’s CTs Multi-channel Series offers wide flexibility for a wide
range of installed sound applications. 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. New Crown MC accessory modules pro-
vide enhanced control, monitoring, and system integration, includ-
ing IQ System compatibility.
Accessories (cont.):
T-170V: This is an autoformer that allows 100V output from the CTs
8200, and allows other amplifiers without direct constant voltage out-
put to be easily integrated into distributed systems.
TP-170V: This is a rack-mountable panel with four autoformers as
described above.
Other Applications:
Regulatory Certifications:
R