Crown's 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.

Features

3 inputs (each with a volume control), and one 35W amplifier output channel in 135MA

4 inputs (each with a volume control), and one 60W amplifier output channel in 160MA

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

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