Crown CCA 1160A Catalog Download

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COMMERCIAL AUDIO

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www.crownaudio.com

he 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.

SPECIFICATIONS

Performance

Frequency Response

(at 1 watt from 4-ohm tap):

70 Hz to 19 kHz ±1 dB.

Frequency Response

(at line out): 20 Hz to 20 kHz

+/- 1 dB.

Power Bandwidth

(at 4-ohm tap, 2 dB below

maximum 1 kHz power): 50 Hz to 20 kHz with
< 0.5% THD

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.

nput 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.

Line Output Level

(nominal): 1V into 10 kilohms.

AC Line Voltage and Frequency Configurations
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° C

at 95% relative humidity (non-condensing).

Storage Temperature:

–20° C to 85° C.

Front Panel Controls and Indicators

Power Switch:

Push-button on-off switch.

Power Indicator:

Blue LED indicates power on.

Output Signal Presence Indicator:

Green LED,

one for each output channel, illuminates when out-
put 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.

Master 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 pro-

tects the power supply. 220/230/240V units have a
fuse instead.

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 terminal forks. Non-touch cover
included.

Output VCA Connector:

One for every two chan-

nels, 4-pin Phoenix-type connector for two VCA
control lines of +10 VDC and ground. Compatible
with Crown 1-VCAP and 4-VCAP modules.

Amp Input Connector:

3-pin Phoenix-type, high-

impedance balanced, one per amplifier channel.

Cooling

Convection cooled.

Protection

Current Limit Protection:

Included.

Thermal Limit Protection:

Over-temperature

thermal cutout.

DC-Fault Load Protection:

Included.

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 channels.

Dimensions

Width (without rack ears): 17.3 in. (43.8 cm).

Width (with rack ears): EIA Standard 19 in. (48.3-
cm) W (EIA RS-310-B).

Height (front panel): 3.5 in. (8.9 cm).

Height (including feet): 4.1 in. (10.5 cm).

Depth (front panel to back panel): 12.2 in. (31.0
cm).

Depth (front of knobs to back of non-touch cover):
13.9 in. (35.2 cm).

Weight

Net Weight:

30.3 lb (13.7 kg).

Shipping Weight:

35.3 lb (16.0 kg).

Regulatory Certifications

Note: All measurements are related to 120VAC units 60
Hz in stereo mode with 8-ohm loads at 1 kHz at rated
power unless other otherwise specified. Specifications
for units supplied outside the U.S.A. may vary slightly
at different AC voltages and frequencies.