Crown Audio 280A, 180A, 1160A User Manual
180A
280A
1160A
COMMERCIAL AUDIO SERIES
T
B
T
B
he Crown
high-value amplifi ers for commercial and
T
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 mixeramps. These low-cost units provide all necessary
features in a simple building-block format.
The amplifi ers vary in their number of inputs,
number of outputs, and power range:
• 180A has 1 input and one 80W power amplifi er
for single-zone systems.
• 280A has 2 inputs and dual 80W power amplifi ers for two-zone systems.
• 1160A has 1 input and one 160W power amplifi er for single-zone systems.
Some applications include schools, hospitals,
factories, restaurant/retail, houses of worship,
fi tness facilities, A/V boardrooms, prisons, and
small offi ces. Typical uses are paging, background
music, security and evacuation instructions.
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.
®
180A, 280A, and 1160A are
Specifi cations
Performance
Frequency Reponse (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
maxium 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.
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.
Line Output Level (nominal): 1V into 10 kilohms.
AC Line Voltages Available:
100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
Features
• 1 or 2 inputs, 1 or 2 amplifi er output channels.
• Ideal for commercial and industrial use
• Balanced Phoenix-type line inputs; touchproofed screw-terminal speaker outputs
• Advanced protection system includes output
current limiting, DC protection, circuit
*
1 kHz
180A
Minimum guaranteed power
into 4 ohms or 70V/100V output
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
280A
Minimum guaranteed power
per channel into 4 ohms or
70V/100V output
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
1160A
Minimum guaranteed power
into 4 ohms or 70V/100V output
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
Power
80W
*
1 kHz
Power
80W
*
1 kHz
Power
160W
breaker/fuse, and thermal protection; details
available online at www.crownaudio.com
• Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment
and guarantees its specifi cations
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: Pushbutton on-off switch. The
power switch does not affect the 24V DC auxiliary
power input.
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.
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
protects the power supply. 220/230/240V units
have a fuse instead.
AC Power Inlet: Detachable IEC.
Auxiliary Power Input: 2-position terminal strip
for 24 VDC (±10%) backup power. Accepts up to
14 AWG terminal forks.
Amplifi er 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.
Output VCA Connector: One for every two channels, 4-pin Phoenix-type connector for two VCA
control lines of +10 VDC and ground. Compatible
with Crown 1-VCAP and 4-VCAP modules.
280A back panel. 180A and 1160A are similar except for the number of channels.
180A
280A
1160A
Line Out Connector: One 3-pin balanced Phoenixtype connector per output channel. Post master,
pre-VCA. Level controlled by master volume
control.
Amp Input Connector:
3-pin Phoenix-type, high-impedance balanced,
one per amplifer 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
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 including feet. 13.9
inches (35.2 cm) deep from front of knobs to back
of non-touch cover.
Weight
Net Weight:
180A: 21.0 lb (9.5 kg)
280A: 25.3 lb (11.5 kg)
1160A: 25.3 lb (11.5 kg)
Shipping Weight:
180A: 26.0 lb (11.8 kg)
280A: 30.3 lb (13.7 kg)
1160A: 30.3 lb (13.7 kg)
Crown’s Three-Year, No-Fault, Fully Transferable Warranty
Crown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown amplifi er-—an
unsurpassed industry standard. With this unprecedented No-Fault protection, your new Crown amplifi er
is warranted to meet or exceed original specifi cations for the fi rst three years of ownership. During this
time, if your amplifi er fails, or does not perform to original specifi cations, it will be repaired or replaced
at our expense. About the only things not covered by this warranty are those losses normally covered by
insurance and those caused by intentional abuse. And the coverage is transferable, should you sell your
amplifi er.
See your authorized Crown dealer for full warranty disclosure and details. For customers outside of the
USA, please contact your authorized Crown distributor for warranty information or call 574-294-8200.
Crown International
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: 574-294-8200
FAX: 574-294-8FAX
www.crownaudio.com
Specifi cations subject to change without prior notice. Latest
information available at www.crownaudio.com.
Crown and Crown Audio are registered trademarks of Crown
International. Other trademarks are the property of their
respective owners. Printed in U.S.A.
© 2007 Crown Audio
9/07 138118-2A
®
, Inc.
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