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Features of the Rolls MA1705

   Mixer / 70 Volt Amplifier


The Rolls MA1705 is a single rack space mixer amplifier designed for installation applications. The unit provides a compact and efficient way to mix up to three sources such as AM/FM tuners, CD players, and video players with up to two microphones. Priority talkover is provided on Microphone One for paging, and on Source Three for a jukebox, telephone, etc. The power amplifier provides 70 watts of power when connected to a 70 volt speaker system.

• Two Microphone inputs with phantom power
  
• Tone controls for each Mic input
  
• Three stereo Source inputs (mixed to mono)
  
• Bass and Treble controls on Sources Tow and Three
  
• Priority ducking on Mic Two and Source One
  
• Dual pre-master level Record Output
  
• Fault protected power amp
  
• Balanced 70 volt line output
  
• Spring-loaded output terminals
  
• Clip indication
  
• FR4 Double-sided epoxy circuit board
  
• Socketed ICs
  
• Made in the U.S.A.
  

Mixer

• Input Impedance: Mic: 600 Ohms XLR balanced
  
• Source: 22K Ohms RCA
  
• Insert: 22K Ohms 1/4" TS unbal.
  
• Max Input Level: Mic: -14 dBV Mic level Max
  Source: 24 dBV
  
• Insert: + 20 dB
  
• Connectors: 2: XLR, 6: Stereo RCA, 3: 1/4" TRS, 1: 1/4" TS
  
• Phantom Power: +12 VDC
  
• Max Gain: Mic: 60 dB, Source: 26 dB
  
• Tone Controls: +/-12 dB 100 Hz Bass
  +/-12 dB 11kHz Treble
  
• Noise Floor: - 80 dB
  
• S/N Ratio: 96 dB
  
• Priority Attenuation: 60 dB
  

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