MCM Electronics

Portable PA Amplifier By Pyramid (PA105) MCM Part #555-3187

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Compact, versatile public address amplifier. Three channel mixer/amplifier accepts two mic and one auxiliary/phono input, provides 80W max output and will drive 4/8/16ohm and 70V loads.

Specifications Top

  • Individual level controls for Mic 1, Mic 2 and phono/aux inputs
  • Rear panel phono/aux selector for line level, or magnetic phono level sources
  • Master level control
  • Master tone control
  • 12 segment LED bar graph output meter
  • Quick push speaker connections
  • 70V output for compatibility with distributed audio systems
  • Detachable IEC type AC power cord
  • Unswitched convenience AC outlet
  • Mix bus connection for daisy chaining multiple amplifiers

  • Power output: 20W/80W RMS/max
  • THD: 1%
  • Frequency response: 80Hz~20KHz
  • Input sensitivity: 2.5mV (mic), 150mV (aux), 3.5mV (phono)
  • Power requirements: 120/240VAC, 50/50Hz
  • Dimensions: 3.3" (H) x 12.75" (W) x 8.9" (D)
    Part Numbers
    MCM Part #:555-3187
    Pyramid Part #:PA105
    Package Specifications & Dimensions
    Weight:9.32 lbs.
    Warranty:365 days
    Need to Return?
    Length:14 in.
    Width:11.25 in.
    Height:5 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
  • Product Reviews Top

    • by rali

      on 8/12/2015


      Overall: 1 out of 5

      Bought several of these because we have the RadioShak clones but since they do not carry these we decide to buy these because the Specs were identical and were exact clones.. We connected these up in the shop to one 70volt PA speaker and within 24hours that all were exhibited the same problem. A very loud crackling sound from the output and could not be controlled by volume adjustment. The loud crackling sound which puts the unit out of service.
      MCM decided to replace which I had great customer service and quick turnaround but even the replacements did the same thing. SOLUTION: spend extra money and buy BOGEN amps. Installed problem solved!!

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