Crown Audio Stereo Amplifier 280A User Manual

180A  
280A  
1160A  
C O M M E R C I A L A U D I O S E R I E S  
B
T
B
T
he Crown® 180A, 280A, and 1160A are  
high-value amplifiers for commercial and  
industrial audio. They provide 4-ohm and  
constant-voltage outputs (70V and 100V). The  
amps are 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.  
T
Features  
1 or 2 inputs, 1 or 2 amplifier output chan-  
nels.  
breaker/fuse, and thermal protection; details  
The amplifiers vary in their number of inputs,  
number of outputs, and power range:  
Ideal for commercial and industrial use  
Three-Year, No-Fault, Fully Transferable War-  
ranty completely protects your investment  
and guarantees its specifications  
Balanced Phoenix-type line inputs; touch-  
proofed screw-terminal speaker outputs  
• 180A has 1 input and one 80W power amplifier  
for single-zone systems.  
Advanced protection system includes output  
current limiting, DC protection, circuit  
• 280A has 2 inputs and dual 80W power ampli-  
fiers for two-zone systems.  
• 1160A has 1 input and one 160W power ampli-  
fier for single-zone systems.  
Operating Temperature/Humidity: 0° C to 40° C  
at 95% relative humidity (non-condensing).  
Some applications include schools, hospitals,  
factories, restaurant/retail, houses of worship,  
fitness facilities, A/V boardrooms, prisons, and  
small offices. Typical uses are paging, background  
music, security and evacuation instructions.  
*1 kHz  
Power  
Storage Temperature: –20° C to 85° C.  
180A  
Minimum guaranteed power  
Front Panel Controls and Indicators  
into 4 ohms or 70V/100V output  
The sound system can be upgraded as a facility  
expands. For example, you can add more mixers  
for more inputs, or add more power amps (or  
mixer-amps) to handle more zones.  
80W  
Power Switch: Pushbutton on-off switch. The  
power switch does not affect the 24V DC auxiliary  
power input.  
*1 kHz Power: refers to maximum power in watts at  
1 kHz with 0.5% THD.  
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.  
Specifications  
Performance  
Frequency Reponse (at 1 watt from 4-ohm tap):  
70 Hz to 19 kHz +/- 1 dB.  
Clip Indicators: Red LED, one per output channel.  
Illuminates at threshold of audible distortion.  
Frequency Response (at line out): 20 Hz to 20  
kHz +/- 1 dB.  
Master Volume Controls: One per output channel.  
Detented potentiometer with knob.  
*
1 kHz  
Power Bandwidth (at 4-ohm tap, 2 dB below  
maxium 1 kHz power): 50 Hz to 20 kHz with  
< 0.5% THD  
280A  
Power  
Tone Controls: Bass and Treble non-detented  
potentiometers on each channel. Bass 10 dB at  
100 Hz, Treble 10 dB at 10 kHz.  
Minimum guaranteed power  
per channel into 4 ohms or  
70V/100V output  
Signal to Noise Ratio (ref. to rated power, master  
volume at minimum): 85 dB.  
80W  
Back Panel Controls and Connectors  
DC Output Offset: < 5 mV.  
*1 kHz Power: refers to maximum power in watts at  
1 kHz with 0.5% THD.  
Reset Switch: Resets the circuit breaker that  
protects the power supply. 220/230/240V units  
have a fuse instead.  
THD: Less than 0.5% at rated power at 1 kHz.  
Input Sensitivity (for full output at maximum  
gain): 800 mV.  
AC Power Inlet: Detachable IEC.  
Input Impedance (nominal): 100 kilohms.  
Auxiliary Power Input: 2-position terminal strip  
for 24 VDC ( 10%) backup power. Accepts up to  
14 AWG terminal forks.  
Minimum Load Impedance:  
100V output: 160 ohms.  
70V output: 80 ohms.  
Amplifier Outputs Connectors: One per channel,  
4-position terminal strip with COM (Common), 4  
ohms, 70V and 100V terminals. Accepts up to 10  
AWG terminal forks. Non-touch cover included.  
4-ohm output: 4/8 ohms.  
*1 kHz  
Power  
Crosstalk (all controls at “10”): –70 dB at 1kHz.  
Line Output Level (nominal): 1V into 10 kilohms.  
1160A  
Minimum guaranteed power  
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.  
AC Line Voltages Available:  
100V 50/60 Hz  
120V 60 Hz  
220V 50/60 Hz  
230V 50/60 Hz  
into 4 ohms or 70V/100V output  
160W  
*1 kHz Power: refers to maximum power in watts at  
1 kHz with 0.5% THD.  
240V 50/60 Hz  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Compaq Network Router MTEK6000 User Manual
Cooper Lighting Indoor Furnishings VRX Series User Manual
Cooper Lighting Landscape Lighting LXD70SR2334 User Manual
Craftsman Lawn Aerator 48624218 User Manual
DVS Blower 99000153 User Manual
Edimax Technology Security Camera MD 111E User Manual
Electro Voice Marine Radio electrovoice User Manual
Franklin Industries LLC Refrigerator FCR36OD User Manual
Frigidaire Washer FAFS4272LA User Manual
GE Monogram Oven ZGU36N6DSS User Manual