Crown - 280A Audio amplifier
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The Crown 280A is a two-channel, dual 80 W amplifier from 2007, in like-new condition and tested and working.
AI-assisted summary
Description from the seller
Crown 280A – Professional 2-channel preamp
Dual 80W amplifier for 2-zone systems
4-ohm, 70V and 100V outputs
Built-in protection circuitry
Ideal for commercial audio, PA,
workshops, venues, etc.
Frequency Response (at 1 watt from 4-ohm tap):
70 Hz to 19 kHz +/-1 dB, (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
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 1 kHz
Line Output Level (nominal) 1V into 10 kilohms
Crown 280A – Professional 2-channel preamp
Dual 80W amplifier for 2-zone systems
4-ohm, 70V and 100V outputs
Built-in protection circuitry
Ideal for commercial audio, PA,
workshops, venues, etc.
Frequency Response (at 1 watt from 4-ohm tap):
70 Hz to 19 kHz +/-1 dB, (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
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 1 kHz
Line Output Level (nominal) 1V into 10 kilohms
Details
Era
After 2000
Brand
Crown
Model
280A
Multiple models
No
Physical condition
Mint
Number of objects
1
Includes
No extra's
Serial number
FMH08603DE
Year of manufacturing
2007
Weight
14 kg
Functional condition
Tested and working/playable
Height
9 cm
Width
44 cm
Depth
32 cm
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