280A - Amplifier - Batts Audio, Video and Lighting

280A - Amplifier

Crown Audio

The 280A from Crown Audio is a 2-channel, 2 x 80W amplifier designed for commercial and industrial audio, and is part of Crown's Commercial Audio Series of products. This amplifier is suitable for use in schools, hospitals, offices, prisons, retail spaces, and other similar venues for applications such as background music and announcements. It features balanced phoenix-type inputs and touch-proof screw-terminal speaker outputs. It also has a protection system for output current limiting and DC and thermal protection.

  • Dual inputs and two 80W amplifiers for two-zone systems
  • Can be combined with other amplifiers or mixers from Crown's Commercial Audio Series for expandability
  • Ideal for commercial and industrial use
  • Protection system includes output current limiting and DC and thermal protection. 


Output Power 80W Per Channel into 4 ohms or 70V/100V
Damping Factor Not Specified by Manufacturer
Input Sensitivity 800 mV
Input Impedance 100 k ohms
Gain Not Specified by Manufacturer
Frequency Response 70Hz - 19kHz (@ 1W from 4 ohm Tap)
20Hz - 20kHz (@ Line Out)
Signal-to-Noise Ratio 85 dB
Total Harmonic Distortion (THD) Less than 0.5%
Input Connections 2 x 3-Pin Phoenix-Type (Balanced)
Output Connectors 2 x 4-Position Terminal Strip
1 x VCA 4-Pin Phoenix-Type Connector
1 x 3-Pin Phoenix-Type Connector (Balanced)
Controls Front Panel On/Off Button
1 x Detented Volume Control Knob Per Channel
1 x Each of Non-Detented Bass and Treble Controls Per Channel
Controls (Rear) Reset Button
Indicators Front-Panel Power, Signal, and Clip LEDs
Cooling Convection Cooled
Power Consumption 100V 50/60Hz, 120V 60Hz, 220V-240V 50/60Hz
Dimensions (WxHxD) 19 x 3.5 x 12.2" (483 x 89 x 310 mm)
Weight 30.3 lbs (13.7 kg)
Specialties Protection System for Current Limiting, Overheating Protection, and DC Protection