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PR4 1000-2 Class D Power Amplifier

PR4 Front

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The PRx-1000-2 series amplifier is a class D high-power amplifier with up to 8 inputs and outputs. It is mainly intended for fixed sound installations and suitable even in surroundings where low operating noise is relevant.
Due to its cooling concept with large heatsinks and microprocessor-controlled ultra-low noise fans, the amplifier remains quiet even under full load conditions.

Main Features

  • 500W per single ended output channel
  • up to 8 analog inputs and outputs
  • high dynamic range (118 / 120 dB(A) single ended / bridged)
  • Front panel LEDs signal protect / fan / bridge / clip / signal status
  • GPO relais for status surveillance
  • Configurable by switches at back panel
  • Customizable at order time with 1-4 amplifier modules
  • Ultra low noise operation (suitable for cinemas)
  • Pascal high-power amplifier modules and PSU
  • PFC (power factor correction)
PR4 back panel

Technical Data

Max. input voltage   23 dBu
Voltage gain   128 dB(A)
Dynamic range   112 dB(A)
THD+N (1kHz)   -90 dB
Noise (20Hz – 20 kHz)   -81.5 dBu
Mains input voltage   85-265 VAC
Power per channel   500 / 1000 W (SE/BTL)
Analog input   balanced XLR
Operating noise level (1m)   19 dB(A)
Dimensions   19” 2RU, 435 mm
Weight   14.7 kg

The PRx-1000-2 provides over current, DC, temperature and high frequency protection