180ma lightbox

180MA (discontinued)

Four Input, 80W Mixer-Amplifier

Overview
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Specifications

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.

For more commercial mixer-amplifier options, check out the JBL Commercial Series

Recommended for: Commercial.

Please note: the tone generator has been omitted. Contact Crown Technical Support if you have a tone generator question. For product already in service with the tone generator feature, please see this Important Errata Information.

  • The 180MA has 4 inputs and one 80W power amplifier
  • The 1160MA has 4 inputs and one 160W power amplifier
  • The 280MA has 8 inputs and dual 80W power amplifiers
  • 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
  • Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications
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
180ma medium