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28M (discontinued)

Eight Input, Two Output Pre-Amplifier/Mixer

Overview
Features
Specifications

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.

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

Recommended for: Commercial.

  • Ideal for commercial and industrial use
  • Expandable by adding Crown Commercial Audio Series amplifiers or mixer-amplifiers
  • Balanced Phoenix-type mic/line inputs
  • Any input can be sent to any output channel
  • Priority muting
  • Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications
  • The 14M has 4 inputs and 1 output channel
  • The 28M has 8 inputs and 2 output channels
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 miximum gain): Balanced mic inputs: 3 mV, Balanced line inputs: 800 mV, RCA connectors: 400 mV
Input Impedance (nominal) Mic: 400 kilohms, Line: 100 kilohms, RCA: 50 kilohms
Crosstalk (all controls at "10") -50 dB at 1 kHz
Line Output Level (nominal) 1.2 V into 10 kilohms
Phantom Power 15 VDC
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
Crowncca 28m frgh clip medium Crowncca 28m bk medium