Up for Auction is a Crown 280MA Commercial Amplifier
This AMP is used but has been tested and works great and is in great condition.
$40.00 Flat Rate Shipping via UPS Ground to any of the lower 48 states
Details from the Crown Website are as follows:
Crown’s Commercial Audio mixer/amplifiers deliver legendary
Crown quality to the commercial audio industry. These high-value
mixer/amplifiers provide both 4-ohm and constant-voltage outputs (70V and 100V)
for use in a wide range of commercial applications including schools,
hospitals, factories, restaurant/retail, houses of worship, fitness facilities,
A/V boardrooms, prisons, and small offices. Easily configured for a range of
uses such as paging, background music, security, and evacuation instructions,
Crown’s Commercial Audio units are the smart choice for commercial sound.
4 to 8 inputs, 1 to 2 amplifier output channels
Ideal for commercial and industrial use
Expandable by adding Crown Commercial Audio Series mixers or
power amplifiers
Balanced Phoenix-type mic/line inputs; touch-proof
screw-terminal speaker outputs
Any input can be sent to any output
Priority muting
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 miximum gain): 800 mV
Input Impedance (nominal): 100 kilohms
Minimum Load Impedance: 100V ouput: 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
AC Line Voltages Available: 100V 50/60 Hz, 120V 60Hz, 220V
50/60 Hz, 230V 50/60 Hz, 240V 50/60 Hz
Operating Temperature/Humidity: 0 degrees C to 40 degrees C
at 95% relative humidity (non-condensing)
Storage Temperature: -20 degrees C to 85 degrees C