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InterM PA-6348


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Product Overview

480W Commercial PA Amplifier

The PA-6348 is Inter-M's best-selling commercial PA amplifier. The 6300 Series are recognised for their ruggedness, reliability and performance. They are the installer’s choice for sound reinforcement, background music, paging, and public address systems. Featuring low-distortion, low-noise amplifier electronics circuits which provides a high-output and a high S / N ratio. PA 6300 series amps provide a wide dynamic range with excellent headroom. An onboard High Pass Filter protects both amplifier and speakers from damaging transients. A comprehensive thermal/electrical protection circuit ensures long-haul dependability. Thermister protected output helps ensure overall stability and provides input overload protection. Internal airflow and exceptionally quiet multi-stage fans ensures amplifier cooling. Phoenix-style terminals provides for quick, easy hookup. Models are available in a variety of output power, 120, 240, 360 and 480 watts power output in 8/4 ohm low impedance and in 70/100V high impedances output using low-distortion transformers. The PA 6300 series offers outstanding versatility, long term reliability, and a remarkable value for any installation application.


The PA-63000 Series amplifiers are high power output high quality rugged and reliable amplifiers to design to be used with the 6000 series mass communication system.

Because of their outstanding versatility they have been the installer’s choice for sound reinforcement, background music, paging, and public address systems.


  • High power - low noise circuit – Low-noise, high-output circuit offers better than 95dB signal-to-noise ratio
  • 120W RMS (PA-6312), 240W RMS (PA-6324), 360W RMS (PA-6336), 480W RMS (PA-6348) output power THD (Total Harmonic Distortion) is less than 1%
  • 400Hz HPF (High Pass Filter) – 400Hz, High Pass Filter removes low frequency noise, improves speech intelligibility and protects both amplifier and speakers from damaging transients
  • -12dB gain adjustment – Rear mounted trim pot offers -12dB volume adjustment the nominal output (Variable output voltage of up to 75%)
  • Output level indicators
  • Front panel LED indicates visual changes in output level
  • Rack Mountable
  • Can be rack mounted utilises 3U of rack mount space or used in a Table Top configuration
  • High reliability
  • Build from high-reliability components ensures ruggedness and long term failure free use
  • Thermal Protection – Thermal and overload protection including controlled airflow and variable speed cooling ensures long-haul dependability


  • Rated Output Power (THD 5%, 1kHz): 480W
  • Frequency Response (+1/-3dB): 70Hz-18kHz
  • T.H.D: Less than 5%
  • High Pass Filter: 400Hz, -3dB
  • Gain Control: 0dB ~ -12dB
  • S/N: Better than 90dB
  • Input Sensitivity/Impedance: 1V/10kΩ Balanced
  • Output Voltage/Impedance: 4Ω/43.8V, 10.2Ω/70V, 20.8Ω/100V
  • Operation Temperature: -10 ~ +40/ 14~104
  • Power Source: 100–120VAC or 220–240VAC; 50/60Hz, 24VDC (Supplied AC mains transformer depends on country requirements)
  • Power Consumption (1/8 power): 600W
  • Weight (Set): 22kg/48lb
  • Dimensions (Set): 482(W)×132(H)×280(D)mm/19(W)x5.2(H)x11(D)in

Product Downloads

  • PA-6348 User Manual PDF 1.5 MB
  • PA-6348 Leaflet PDF 0.3 MB
  • PA-6348 ED DWG DWG 0.1 MB
  • PA-6348 DWG DWG 0.2 MB


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*Prices are in AUD, include GST and are subject to change. Please call National Audio for pricing and availability on the PA-6348.