Crown 135MA and 160MA are high value mixer-amplifiers for commercial audio. They provide 8-ohm and constant-voltage outputs (70V and 100V). Typical uses are paging, background music, and music-on-hold.

The 135MA provides 3 inputs (each with a volume control) and a 35W amplifier output.

The 160MA provides 4 inputs (each with a volume control) and a 60W amplifier output.

Other features include priority muting, voice activated muting, phantom power, and bass and treble controls.

Product Features

• 3 inputs (each with a volume control), and one 35W amplifier output channel in 135MA
• Ideal for paging, background music, and music-on-hold
• Balanced Phoenix-type mic/line input, telephone output, dual RCA stereo music inputs, screw-terminal speaker outputs
• Priority muting by VOX or external switch
• Bass and Treble controls on master output
• Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications

Product Specifications

• Frequency Response: (at 1 watt from line out): 50 Hz to 20 kHz +/-1 dB, 19 Hz to 34 kHz - 3 dB
• Signal to Noise Ratio: (ref. to rated power, master volume at minimum): Mic: > 58 dB, Line: > 60 dB, Telephone: > 60dB, Inputs 2 or 3: > 78 dB
• THD+Noise: < 0.5% at rated power at 1 kHz, < 0.1% at 5W at 1 kHz
• Input Sensitivity: (for full output at miximum gain): Input 1: Mic 3mV, Line 800 mV, Input 2: 400mV, Input 3: 400mV
• Input Impedance (nominal): Mic: 2.2 kilohms, Line: 10 kilohms, RCA: 10 kilohms
• Crosstalk: -82 dB at 1 kHz (Ch. 1 line inpute 0.8V, Ch. 1 volume at minimum, other channel volumes at maximum)
• Line Output Level (nominal): 1V into 10 kilohms
• Phantom Power: 15 VDC
• AC Line Voltages Available: Universal Power Supply. Line voltage tolerance +15%, -20%
• 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
• IEC Power Connector: 15A