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Speaker / amplifier Universal (for systems pre Jan 1997)


£48.16 Inc VAT
£40.13 Ex VAT£42.24

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Universal speaker / amplifier (for systems pre Jan 1997)

SRS 5150M speaker unit can be used with all audio door entry systems using traditional wiring (4+n). It has two, built-in amplifiers for speech in both directions and will accept power from a variety of sources.

This speech module (speaker unit) is designed to be fitted into the back box, rather than onto the front plate.


  • High compatibility
  • Can be used for refurbishments

Technical Data:

  • Traditional wiring (4+n)
  • Terminal + 6 - 12V DC, or 8 - 12V AC
  • Terminal 1 Microphone Out - to phone earpiece
  • Terminal 2 Microphone In - from phone microphone
  • Terminal - OV of system
  • Terminal C Tone Call output

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