PA-15 | 15-watt Paging Amplifier | Viking Electronics

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15 Watt Paging Amplifier with Loud Ringing and Background Music

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Product Details

The PA-15 interfaces with virtually any telephone system to provide 15 Watts of paging power – enough to drive fifteen 8 Ohm paging horns or paging speakers. This small and light weight chassis design is possible by utilizing new amplifier technology that is 300% more inefficient than old designs competitors use. High efficiency means much less heat dissipation, smaller size, higher reliability, and lower cost.

The PA-15 provides a 36V talk battery for interfacing with an FXO or unused analog line input / trunk port. With the flip of a switch, the unit can connect to an FXS or PABX / Centrex station ring trip port, or a 600 Ohm paging port. When interfacing with paging systems that do not provide a paging contact closure, the built-in voice activation (VOX) is in control.

After paging, the PA-15 automatically disconnects on CPC, busy signal, silence, or default disconnect timer (helps prevent accidental paging system lock-up if phone is hung-up incorrectly). The paging unit will generate adjustable loud ringing from an independent ringing analog FXS / PABX / Centrex station or from a dry contact closure. The PA-15 can provide background music (muted during page) if connected to an external music source.

Replaces the CPA-7B, provides twice the power and many new features.


  • Page from virtually any POTS, Centrex, PABX, digital or IP phone system
  • Amplified loud paging
  • Loud ringing
  • Night bell
  • Background music in all paging modes
  • Loud ringing and door chime over paging


  • 15 Watts of paging power
  • Drive up to (15) 8 Ohm speakers
  • 600 Ohm output to drive additional amplifiers
  • Select: FXO (loop start), FXS (ring trip) or paging port (VOX relay) interface mode
  • Independent volume controls for Paging, Ringing Tones and Background Music
  • 36VDC talk battery for interfacing with FXO or unused phone system line input / trunk port
  • Compatible with 24V – 48V FXS (ring trip) analog station operation
  • 1K Hz pre-announce page tone (on / off)
  • Provides “Night Bell” warble tone via contact closure or independent ringing analog circuit
  • Choose one of four ringing sounds:
    • Electronic warble (traditional loud ringer)
    • Double gong (two identical “gong” tones)
    • Quadruple chime (four descending chime tones)
    • Door chime (ding-dong)
  • Night transfer switch input
  • CPC detection for immediate disconnect
  • Busy signal detect disconnect
  • Adjustable silence time out disconnect
  • Programmable VOX trigger sensitivity and time out
  • 16 to 72 second disconnect timer (on / off)


  • Power: 120VAC / 13.8VAC 1.25 A UL listed adapter provided
  • Amplifier: 15 Watts – to power up to (15) 8 Ohm speakers (cascade to drive additional speakers)
  • Dimensions: 5.25″ x 3.5″ x 1.75″ (133mm x 89mm x 44mm)
  • Shipping Weight: 3 lbs (1.36 kg)
  • Operating Temperature: 32°F to 90°F (0°C to 32°C)
  • Humidity: 5% to 95% non-condensing
  • Suggested Speakers: Viking 25AE, 30AE, 35AE, 40AE (DOD 498) or 300AE (DOD 497) speakers
  • Sound Pressure Level: 115dB SPL @ 1m with a Viking 25AE paging horn
  • Maximum Speaker Cable Length: See Product Manual
  • Talk Battery Output: 36VDC (loop current 36mA nominal)
  • Connections: (14) cage clamp screw terminals


To download a tone for use on your product, right click on the Download icon and select "Save Link As" (instructions may vary slightly per web browser)

Tone Description Preview Download
PA-15DoorChime Door chime (ding-dong) N/A
PA-15DoubleGong Double gong (two identical “gong” tones) N/A
PA-15QuadrupleChime Quadruple chime (four descending chime tones) N/A
PA-15WarbleC Electronic warble (traditional loud ringer) N/A
PA-15PageAlertTone Page Alert Tone N/A