CROWN 180A

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The Model 180A by Crown

The Crown 180A is a high-value amplifier for commercial and industrial audio. It provides 4-ohm and constant-voltage outputs (70V and 100V). The amp is part of Crown’s Commercial Audio Series, which also includes mixers and mixeramps. These low-cost units provide all necessary features in a simple building-block format. The amplifiers vary in their number of inputs, number of outputs, and power range:

• 180A has 1 input and one 80W power amplifier for single-zone systems.

180A SPECIFICATIONS

• Frequency Reponse (at 1 watt from 4-ohm tap): 70 Hz to 19 kHz +/- 1 dB.
• Frequency Response (at line out): 20 Hz to 20 kHz +/- 1 dB.
• Power Bandwidth (at 4-ohm tap, 2 dB below maxium 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 1kHz.
• Line Output Level (nominal): 1V into 10 kilohms.

AC Line Voltages Available: 

• 100V 50/60 Hz
• 120V 60 Hz
• 220V 50/60 Hz
• 230V 50/60 Hz
• 240V 50/60 Hz