Crown CTS 2000 `` Specifications, Commercial Audio, Front Panel Controls and Indicators, Cooling

`` SPECIFICATIONS

Frequency Reponse (at 1 watt from 4-ohm tap): 100 Hz to 19 kHz +/- 1 dB.

Frequency Response (at line out): 20 Hz to 20 kHz +/- 1 dB.

Signal to Noise Ratio (ref. to rated power, master volume at minimum): 85 dB.

DC Output Offset: < ±5 mV.

THD: Less than 0.5% at rated power at 1 kHz.

Input Sensitivity (for full output at maximum gain): 800 mV.

Input Impedance (nominal): 100 kilohms.

Minimum Load Impedance:

100V output: 160 ohms.

70V output: 80 ohms.

4-ohm output: 4/8 ohms.

Crosstalk (all controls at “10”): –70 dB at 1kHz.

Load Impedance:

Ch. 1-4: 4 ohms and 70V/100V.

Ch. 5-6: 4 ohms.

AC Line Voltages Available:

100V 50/60 Hz

120V 60 Hz

220V 50/60 Hz

230V 50/60 Hz

240V 50/60 Hz

AC Voltage Tolerance: +10%/–20%.

Operating Temperature/Humidity: 0° C to 40°

Cat 95% relative humidity (non-condensing).Storage Temperature: –20° C to 85° C.

Front Panel Controls and Indicators

Power Switch: Pushbutton on-off switch.

Power Indicator: Blue LED indicates power on.

Output Signal Presence Indicator: Green LED, one for each output channel, illuminates when output signal level exceeds 100 mV (45 dB below full power) from the 4-ohm tap.

Clip Indicators: Red LED, one per output channel. Illuminates at threshold of audible distortion.

Volume Controls: One per output channel. Detented potentiometer with knob.

Tone Controls: Bass and Treble non-detented potentiometers on each channel. Bass ±10 dB at 100 Hz, Treble ±10 dB at 10 kHz.

Back Panel Controls and Connectors

Reset Switch: Resets the circuit breaker that protects the power supply. 220/230/240V units have a fuse instead.

Input Connectors: Detachable 3-pin Phoenix- type, high-impedance balanced, one per chan- nel.

AC Power Inlet: Detachable IEC.

Amplifier Outputs Connectors: One per channel, 4-position terminal strip with COM (Common), 4 ohms, 70V and 100V terminals for channels 1-4 and one 4-position terminal strip (4 ohms, + and – for each channel) for channels 5 and 6. Accepts up to 10 AWG termi- nal forks. Non-touch cover included.

VCA Connector: Each pair of channels has a 4- pin Phoenix-type connector for two VCA control lines of +10 VDC and ground. Compatible with Crown 1-VCAP and 4-VCAP modules.

Cooling

Convection cooled.

Protection

Current Limit Protection: Included.

Thermal Limit Protection: Over-temperature thermal cutout.

DC-Fault Load Protection: Included.

Turn On/Turn Off: No thumps or pops.

Included Accessories

Power cord Detachable rack ears Screws for rack ears

Non-touch cover for output connectors Phoenix-type connectors

Spade lugs

Optional Accessories

1-VCAP remote volume control for one channel. 4-VCAP remote volume control for four chan- nels.

Dimensions

EIA Standard 19-inch (48.3-cm) rack mount width (EIA RS-310-B) with rack ears, 3.5-inch (8.9-cm) height and 12.2-inch (31.0-cm) depth behind the mounting surface (not including non- touch cover). 4.1 inches (10.5 cm) high includ- ing feet. 13.9 inches (35.2 cm) deep from front

of knobs to back of non-touch cover.

Weight

Net Weight:

30.3 lb (13.7 kg)

Shipping Weight:

35.3 lb (16.0 kg)

Regulatory Certifications

11/08 139754-1B

COMMERCIAL AUDIO

The Crown® 660A is a very flexible, high-value six-channel amplifier for commercial and industrial audio. It provides 4-ohm and constant-voltage outputs (70V and 100V) on channels 1 through 4, and 4-ohm outputs on channels 5 and 6. The 660A is a part of Crown’s Commercial Audio Series, which also includes mixers and mixer-amps. These low-cost units provide all necessary features in a simple

building-block format.