Commercial Audio Series Amplifiers
page 5
Operation Manual
1 Welcome
The Crown
®
180A, 280A, 1160A and 66A are
high-value amplifiers for commercial and
industrial audio. They provide 4-ohm and con-
stant-voltage outputs (70V and 100V). The
660A, a six-channel amplifier, 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 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.
Some applications include schools, hospitals,
factories, restaurant/retail, houses of worship,
fitness facilities, A/V boardrooms, prisons, and
small offices. Typical uses are paging, back-
ground music, security and evacuation instruc-
tions.
.The amplifiers vary in their number of inputs,
number of outputs, and power range:
• 180A has 1 input and one 80W power ampli-
fier for single-zone systems.
• 280A has 2 inputs and dual 80W power
amplifiers for two-zone systems.
• 1160A has 1 input and one 160W power
amplifier for single-zone systems.
• 660A has six inputs and six 60W power
amplifier channels for multi-zone systems. It
can drive different types of speakers in different
areas of a facility.
The sound system can be upgraded as a facility
expands. For example, you can add more mix-
ers for more inputs, or add more power amps
(or mixer-amps) to handle more zones.
1.1 Features
• 180A, 280A and 1160A have1 or 2 inputs, 1
or 2 amplifier output channels. 660A has 6
inputs and 6 amplifier output channels.
• Ideal for commercial and industrial use
• Expandable by adding Crown Commercial
Audio mixers or Commercial Audio mixer-
amplifiers
• Balanced Phoenix-type line inputs; touch-
proofed screw-terminal speaker outputs
• Advanced protection system includes output
current limiting, DC protection, circuit 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 specifications
1 kHz
Power
80W
Minimum guaranteed power
into 4 ohms or 70V/100V output
180A
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
*
1 kHz
Power
160W
Minimum guaranteed power
into 4 ohms or 70V/100V output
1160A
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
*
1 kHz
Power
80W
Minimum guaranteed power
per channel into 4 ohms or
70V/100V output
280A
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
*
B
T
B
T
1 kHz
Power
60W
Minimum guaranteed power
into 4 ohms or 70V/100V
output
660A
*1 kHz Power: refers to maximum power in watts at
1 kHz with 0.5% THD.
*
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