®

C O M - T E C H S E R I E S

CT-210

esigned from the ground up exclusively

D for the professional sound contractor,

Com-Tech® offers incredible features,
flexibility, and the best long-term value in
Features
• Unique power supply allows channels to be
independently operated in either 70-V or 8/4-
• IOC® (Input/Output Comparator) circuitry im-
mediately alerts of any distortion exceeding
0.05%, providing dynamic proof of distortion-
commercial audio today. free performance.
ohm mode.
The Com-Tech 10 Series amps offer the same • Enhanced PIP2™ (Programmable Input Pro-
• Remote feature allows amplifier to be turned
features and performance of the original cessor) connector accepts new accessory
on and off from a remote location by adding
Com-Techs while delivering upgraded fea- modules that tailor the amplifier to suit spe-
an optional R.S.V.P. accessory.
tures to help make your job easier. cific applications.
• Crown’s Grounded Bridge™ design delivers
In a profession where unplanned service • Full protection from shorted, open and mis-
large voltage swings without using easily
calls quickly wipe out profits, Com-Tech 10 matched loads; general overheating; DC;
stressed output-transistor configurations like
Series is designed to be the most reliable high-frequency overloads; and full protection
conventional amplifiers. The results are
amplifier you can install. from internal fault are provided by our latest
lower distortion and superior reliability.
For more details about the Crown Com-Tech protection scheme: “Quad-Mute.”
• Patented ODEP® (Output Device Emulation
10 Series, contact the Crown Technical
Protection) circuitry compensates for over- • Three Year No-Fault Full Warranty completely
Support Group at 800-342-6939 or 219-294-
heating and overload to keep the amplifier protects your investment and guarantees its
8200. Also, visit the Crown Audio website at
working when others would fail. specifications.
www.crownaudio.com.

38:1 ±12% or 32 dB ±1 dB gain at 0.775-volts Controls

Specifications (8/4- ohm) volt sensitivity; Enable: A front-panel three-position switch
The following applies to 120-VAC, 60-Hz units in Stereo
Voltage Gain to 1 kHz, 70V rated output, used to select local, off or remote.
mode with 8-ohm loads and an input sensitivity of 26 dB
gain unless otherwise specified. Specifications for units 90:1 ±12% or 39 dB ±1 dB gain at 0.775-volts Level: A 21-position detented back-panel
supplied outside the U.S.A. may vary slightly at different AC
voltages and frequencies. (70-V) sensitivity. rotary potentiometer for each channel used to
Required AC Mains: 50/60-Hz; 100-, 120-, control the input level.
Power
220-, 240- VAC (±10%) units are available. Sensitivity: A three-position switch located
Output Power
North American units are 60 Hz, 120 VAC only. inside the PIP2 compartment used to select
*1 kHz **20 Hz–20 kHz AC Line Current: input sensitivity: 0.775 volts in 8/4-ohm mode
CT-210 Power Power Current, voltage and frequency requirements or 0.775 volts in 70-volt mode for full rated
are provided on the unit’s back panel. output, or a 26-dB voltage gain.
4-ohm Dual (per ch.) 150W 135W
At Idle: All units draw 35 watts or less when Dual/Mono: A three-position back-panel
8-ohm Dual (per ch.) 110W 105W idle (in energy-saving mode). switch used to select Stereo, Bridge-Mono or
70-V Dual (per ch.) 110W 105W AC Line Connector: NEMA 5-15P plug is Parallel-Mono mode.
provided on 120 VAC, 60 Hz North American Reset: A back-panel push button used to reset
8-ohm Bridge-Mono 300W 270W
units. Plug illuminates when unit is powered. the circuit breaker that protects the power
70-V Parallel-Mono 210W supplies.
Performance
140-V Bridge-Mono 205W 200W Frequency Response: ±0.1 dB from 20 Hz to Indicators
20 kHz at 1 watt. Enable: An amber front-panel LED that shows
*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 the on/off status of the low-voltage power
**20 Hz–20 kHz Power: refers to maximum average power
20 kHz at 1 watt. supply.
in watts from 20 Hz to 20 kHz with 0.1% THD.
Signal-to-Noise Ratio, A-weighted: Signal: A green front-panel LED for each
Better than 105 dB below rated 1 kHz power. channel that flashes to show amplifier output.
Load Impedance: Safe with all types of loads.
Total Harmonic Distortion (THD): 1 kHz rated IOC: An amber front-panel LED for each
With 8/4-ohm output, all Com-Techs are rated
power, 0.05% or less true THD. channel that flashes to show distortion if a
for 4 to 8 ohms in Dual mode, 8 to 16-ohms in
channel’s output waveform differs from its
Bridge-Mono mode, and 2 to 4 ohms in Intermodulation Distortion (IMD): (60 Hz and input by 0.05% or more.
Parallel-Mono mode. With 70-volt output, 7 kHz at 4:1) Less than 0.05% from rated
rated loads vary among the different models power to 35 dB below rated power at 8 ohms. ODEP: A green front-panel LED for each
for each dual/mono mode. channel that shows thermal-dynamic energy
Damping Factor: Greater than 1,000 from 10 reserve. Normally, each ODEP indicator is lit to
Voltage Gain to 1 kHz, 8-ohm rated output: Hz to 400 Hz. show available reserve energy. In the rare
20:1 ±3% or 26 dB ±0.25-dB gain at the
Controlled Slew Rate: (Slew rates are limited event that a channel has no reserve, its
maximum level setting.
to useful levels for ultrasonic/RF protection.) indicator will dim in proportion to ODEP
Greater than 17 volts per microsecond. limiting.
 CT-210

Input/Output Bridge-Mono: Balanced, single-channel. Turn On: The four-second turn-on delay
Input Connectors: Balanced three-terminal Channel 1 controls are active; Channel 2 prevents dangerous turn-on transients. “Soft
barrier block connectors with test points are controls should be turned down. start” circuitry provides low inrush so power
provided on the factory-installed PIP2-BB sequencers are rarely needed with multiple
Parallel-Mono: Unbalanced, single-channel.
module. units.
Channel 1 controls are active; Channel 2 is
Input Impedance: Nominally 20 k ohms, bypassed. Accessories: Crown PIP and PIP2 modules
balanced. Nominally 10 k ohms, unbalanced. Protection including IQ-PIP modules; R.S.V.P.
Input Sensitivity: Settings include 0.775-volts Com-Tech amplifiers are protected against Construction
(8/4-ohm) or 0.775 volts (70-V) for standard shorted, open or mismatched loads; over- Steel chassis with durable black powder-coat
1-kHz power, or a 26-dB voltage gain. loaded power supplies; excessive temperature; finish, front panel Lexan overlay, and specially-
Maximum Input Level: 9 Vrms. chain destruction phenomena; input overload designed flow-through ventilation from front to
damage;and high-frequency blowups. They side panels.
Output Connectors: A back-panel barrier block
also protect loudspeakers from input/output Cooling: Internal heat exchangers with on-
with two terminal connections for each output
DC and turn-on/turn-off transients. demand, forced-air cooling (fan is optional for
channel.
If unreasonable operating conditions occur, the the North American Com-Tech 210.
Output Impedance: Less than 10 milliohms in
patented ODEP circuitry will proportionally Dimensions: 19-inch (48.3-cm) standard rack
series with less than 2 microhenries.
limit the drive level to protect the output mount width (EIA RS-310-B), 3.5-inch (8.9-
DC Output Offset: Less than ±10 millivolts. transistor stages, particularly in the case of cm) height, 16-inch (40.6-cm) depth behind
RSVP: A back-panel RJ-11 modular connector elevated temperature. Transformer overheating mounting surface and 0.25 inches (0.6-cm) in
interfaces with an R.S.V.P. unit to provide will result in a temporary shutdown of both front of mounting surface.
remote control of amplifier power on/off channels; the transformer will automatically
resets itself when it has cooled to a safe Approximate Weight: Center of gravity is 6
functions.
temperature. Controlled slew rate voltage inches (15.2 cm) behind the front mounting
Output Signal amplifiers protect against RF burnouts. And surface. 29 pounds, 7 ounces (13.4 kg) net; 33
Stereo: Unbalanced, two-channel. input overload protection is provided by pounds, 14 ounces (15.4 kg) shipping weight.
current-limiting resistance at the input.

Crown’s Three-Year, No-Fault, Full Warranty

Crown offers a Three-Year, No-Fault, Full Warranty for every new Crown amplifier—an unsur-
passed industry standard. With this unprecedented No-Fault protection, your new Crown Crown International, Inc.
amplifier is warranted to meet or exceed original specifications for the first three years of P.O. Box 1000
ownership. During this time, if your amplifier fails, or does not perform to original specifica- Elkhart, IN 46515-1000
tions, it will be repaired or replaced at our expense. About the only things not covered by this TEL: 219-294-8200
warranty are those losses normally covered by insurance and those caused by intentional FAX: 219-294-8FAX
www.crownaudio.com
abuse. And the coverage is transferable, should you sell your amplifier.
Specifications subject to change without prior notice.
See your authorized Crown dealer for full warranty disclosure and details. For customers Crown, Com-Tech, IOC and ODEP are registered trademarks,
outside of the USA, please contact your authorized Crown distributor for warranty information and Ground Bridge, PIP and PIP2 are trademarks of Crown
International, Inc. Printed in U.S.A.
or call 219-294-8200.
© 2000 Crown International, Inc.

08/00 128416-1