Crown Audio Stereo Amplifier CT 210 User Manual

®
C O M - T E C H  
S E R I E S  
CT-210  
esigned from the ground up exclusively  
for the professional sound contractor,  
Com-Tech® offers incredible features,  
Features  
IOC® (Input/Output Comparator) circuitry im-  
mediately alerts of any distortion exceeding  
0.05%, providing dynamic proof of distortion-  
free performance.  
D
Unique power supply allows channels to be  
independently operated in either 70-V or 8/4-  
ohm mode.  
flexibility, and the best long-term value in  
commercial audio today.  
The Com-Tech 10 Series amps offer the same  
features and performance of the original  
Com-Techs while delivering upgraded fea-  
tures to help make your job easier.  
Enhanced PIP2(Programmable Input Pro-  
cessor) connector accepts new accessory  
modules that tailor the amplifier to suit spe-  
cific applications.  
Remote feature allows amplifier to be turned  
on and off from a remote location by adding  
an optional R.S.V.P. accessory.  
Crowns Grounded Bridgedesign delivers  
large voltage swings without using easily  
stressed output-transistor configurations like  
conventional amplifiers. The results are  
lower distortion and superior reliability.  
In a profession where unplanned service  
calls quickly wipe out profits, Com-Tech 10  
Series is designed to be the most reliable  
amplifier you can install.  
Full protection from shorted, open and mis-  
matched loads; general overheating; DC;  
high-frequency overloads; and full protection  
from internal fault are provided by our latest  
protection scheme: Quad-Mute.”  
For more details about the Crown Com-Tech  
10 Series, contact the Crown Technical  
Support Group at 800-342-6939 or 219-294-  
8200. Also, visit the Crown Audio website at  
Patented ODEP® (Output Device Emulation  
Protection) circuitry compensates for over-  
heating and overload to keep the amplifier  
working when others would fail.  
Three Year No-Fault Full Warranty completely  
protects your investment and guarantees its  
specifications.  
38:1 12% or 32 dB 1 dB gain at 0.775-volts  
(8/4- ohm) volt sensitivity;  
Controls  
Specifications  
Enable: A front-panel three-position switch  
used to select local, off or remote.  
The following applies to 120-VAC, 60-Hz units in Stereo  
mode with 8-ohm loads and an input sensitivity of 26 dB  
gain unless otherwise specified. Specifications for units  
supplied outside the U.S.A. may vary slightly at different AC  
voltages and frequencies.  
Voltage Gain to 1 kHz, 70V rated output,  
Level: A 21-position detented back-panel  
rotary potentiometer for each channel used to  
control the input level.  
90:1 12% or 39 dB 1 dB gain at 0.775-volts  
(70-V) sensitivity.  
Required AC Mains: 50/60-Hz; 100-, 120-,  
220-, 240- VAC ( 10%) units are available.  
North American units are 60 Hz, 120 VAC only.  
Power  
Output Power  
Sensitivity: A three-position switch located  
inside the PIP2 compartment used to select  
input sensitivity: 0.775 volts in 8/4-ohm mode  
or 0.775 volts in 70-volt mode for full rated  
output, or a 26-dB voltage gain.  
20 Hz20 kHz  
Power  
*1 kHz **  
Power  
AC Line Current:  
CT-210  
Current, voltage and frequency requirements  
are provided on the units back panel.  
At Idle: All units draw 35 watts or less when  
idle (in energy-saving mode).  
4-ohm Dual (per ch.)  
150W  
135W  
105W  
105W  
270W  
Dual/Mono: A three-position back-panel  
switch used to select Stereo, Bridge-Mono or  
Parallel-Mono mode.  
8-ohm Dual (per ch.) 110W  
110W  
8-ohm Bridge-Mono 300W  
70-V Dual (per ch.)  
AC Line Connector: NEMA 5-15P plug is  
provided on 120 VAC, 60 Hz North American  
units. Plug illuminates when unit is powered.  
Reset: A back-panel push button used to reset  
the circuit breaker that protects the power  
supplies.  
70-V Parallel-Mono  
140-V Bridge-Mono  
210W  
205W  
Performance  
Frequency Response: 0.1 dB from 20 Hz to  
200W  
Indicators  
Enable: An amber front-panel LED that shows  
the on/off status of the low-voltage power  
supply.  
20 kHz at 1 watt.  
*1 kHz Power: refers to maximum average power in watts  
at 1 kHz with 0.1% THD.  
Phase Response: 10 degrees from 10 Hz to  
20 kHz at 1 watt.  
**20 Hz20 kHz Power: refers to maximum average power  
in watts from 20 Hz to 20 kHz with 0.1% THD.  
Signal: A green front-panel LED for each  
channel that flashes to show amplifier output.  
Signal-to-Noise Ratio, A-weighted:  
Better than 105 dB below rated 1 kHz power.  
Load Impedance: Safe with all types of loads.  
With 8/4-ohm output, all Com-Techs are rated  
for 4 to 8 ohms in Dual mode, 8 to 16-ohms in  
Bridge-Mono mode, and 2 to 4 ohms in  
Parallel-Mono mode. With 70-volt output,  
rated loads vary among the different models  
for each dual/mono mode.  
IOC: An amber front-panel LED for each  
channel that flashes to show distortion if a  
channels output waveform differs from its  
input by 0.05% or more.  
Total Harmonic Distortion (THD): 1 kHz rated  
power, 0.05% or less true THD.  
Intermodulation Distortion (IMD): (60 Hz and  
7 kHz at 4:1) Less than 0.05% from rated  
power to 35 dB below rated power at 8 ohms.  
ODEP: A green front-panel LED for each  
channel that shows thermal-dynamic energy  
reserve. Normally, each ODEP indicator is lit to  
show available reserve energy. In the rare  
event that a channel has no reserve, its  
indicator will dim in proportion to ODEP  
limiting.  
Damping Factor: Greater than 1,000 from 10  
Hz to 400 Hz.  
Voltage Gain to 1 kHz, 8-ohm rated output:  
20:1 3% or 26 dB 0.25-dB gain at the  
maximum level setting.  
Controlled Slew Rate: (Slew rates are limited  
to useful levels for ultrasonic/RF protection.)  
Greater than 17 volts per microsecond.  
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