CROWN 28M

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The Model 28M by Crown

Crown’s Commercial Audio mixers deliver legendary Crown quality to the commercial audio industry. These high-value mixers are designed 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.

28M SPECIFICATIONS

• Frequency Response (at line out): 20 Hz to 20 kHz +/- 1 dB.
• Signal to Noise Ratio (master volume at minimum): 100 dB.
• THD: 0.05% typical with 800 mV balanced input, 1V output.

Input Sensitivity (volts RMS for full output at maximum gain): 

• Balanced mic inputs: 3 mV.
• Balanced line inputs: 800 mV.
• RCA connectors: 400 mV.

Input Impedance (nominal): 

• Mic: 400 ohms.
• Line: 100 kilohms.
• RCA: 50 kilohms.
• Crosstalk (all controls at “10”): –50 dB at 1kHz.
• Line Output Level (nominal): 1.2 V into 10 kilohms.
• Phantom Power: 15 VDC.

AC Line Voltages Available: 

• 100V 50/60 Hz
• 120V 60 Hz
• 220V 50/60 Hz
• 230V 50/60 Hz
• 240V 50/60 Hz
• Operating Temperature/Humidity: 0° C to 40° C at 95% relative humidity (non-condensing).
• Storage Temperature: –20° C to 85° C.