esigned from the ground up exclusively Dfor the professional sound contractor,
Com-Tech®offers incredible features, 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.
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.
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 www.crownaudio.com.
| Features | • IOC® (Input/Output Comparator) circuitry im- |
| • Unique power supply allows channels to be | mediately alerts of any distortion exceeding |
| independently operated in either 70-V or 8/4- | 0.05%, providing dynamic proof of distortion- |
| ohm mode. | free performance. |
| • Remote feature allows amplifier to be turned | • Enhanced PIP2™ (Programmable Input Pro- |
| on and off from a remote location by adding | cessor) connector accepts new accessory |
| an optional R.S.V.P. accessory. | modules that tailor the amplifier to suit spe- |
| • Crown’s Grounded Bridge™ design delivers | cific applications. |
| • Full protection from shorted, open and mis- |
| large voltage swings without using easily |
| stressed output-transistor configurations like | matched loads; general overheating; DC; |
| conventional amplifiers. The results are | high-frequency overloads; and full protection |
| lower distortion and superior reliability. | from internal fault are provided by our latest |
| • Patented ODEP® (Output Device Emulation | protection scheme: “Quad-Mute.” |
| • Three Year No-Fault Full Warranty completely |
| Protection) circuitry compensates for over- |
| heating and overload to keep the amplifier | protects your investment and guarantees its |
| working when others would fail. | specifications. |
| | |
Specifications
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.
Power
Output Power
CT-210 | *1 kHz | **20 Hz–20 kHz |
Power | Power |
4-ohm Dual (per ch.) | 150W | 135W |
8-ohm Dual (per ch.) | 110W | 105W |
70-V Dual (per ch.) | 110W | 105W |
8-ohm Bridge-Mono | 300W | 270W |
70-V Parallel-Mono | 210W | |
140-V Bridge-Mono | 205W | 200W |
*1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.1% THD.
**20 Hz–20 kHz Power: refers to maximum average power in watts from 20 Hz to 20 kHz with 0.1% THD.
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.
Voltage Gain to 1 kHz, 8-ohm rated output: 20:1 ±3% or 26 dB ±0.25-dB gain at the maximum level setting.
38:1 ±12% or 32 dB ±1 dB gain at 0.775-volts (8/4- ohm) volt sensitivity;
Voltage Gain to 1 kHz, 70V rated output,
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.
AC Line Current:
Current, voltage and frequency requirements are provided on the unit’s back panel.
At Idle: All units draw 35 watts or less when idle (in energy-saving mode).
AC Line Connector: NEMA 5-15P plug is provided on 120 VAC, 60 Hz North American units. Plug illuminates when unit is powered.
Performance
Frequency Response: ±0.1 dB from 20 Hz to 20 kHz at 1 watt.
Phase Response: ±10 degrees from 10 Hz to 20 kHz at 1 watt.
Signal-to-Noise Ratio, A-weighted:
Better than 105 dB below rated 1 kHz power.
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.
Damping Factor: Greater than 1,000 from 10 Hz to 400 Hz.
Controlled Slew Rate: (Slew rates are limited to useful levels for ultrasonic/RF protection.) Greater than 17 volts per microsecond.
Controls
Enable: A front-panel three-position switch used to select local, off or remote.
Level: A 21-position detented back-panel rotary potentiometer for each channel used to control the input level.
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.
Dual/Mono: A three-position back-panel switch used to select Stereo, Bridge-Mono or Parallel-Mono mode.
Reset: A back-panel push button used to reset the circuit breaker that protects the power supplies.
Indicators
Enable: An amber front-panel LED that shows the on/off status of the low-voltage power supply.
Signal: A green front-panel LED for each channel that flashes to show amplifier output.
IOC: An amber front-panel LED for each channel that flashes to show distortion if a channel’s output waveform differs from its input by 0.05% or more.
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.
