Four-channel amplifier 4XD500


Approval: Part of EN 54-16

Power amplifier for the voice alarm system VARIODYN D1 in class D technologies with four independent power channels and galvanic isolated 100 V direct outputs, symmetric inputs, inrush current limitation and soft start. In comparison to our 4XDxxxB series amplifiers, one amplifier can back up another amplifier. Four built-in fans with smooth temperature controlled speed control.
  • Built- in electronic protective circuit against thermal overload, DC signals, sub frequent signals, short circuit, open outputs and HF interference
  • Individual status LEDs indicate channel CLIP, PROTECT, SIGNAL, POWER, LINE and 24 V DC power Back switch contact for sequential remote power
  • 2 back fault message contacts
  • Back fault message contact for missing 24 V emergency power supply
  • 24 V emergency power supply input
  • Suitable for use with loop technology
Rated voltage
230 V AC
Rated frequency 50 ... 60 Hz (+10% / -5%)
Power output 4 x 500 W
Color gray, similar to RAL 7016
Ambient temperature -5 °C ... 55 °C
Weight approx. 14 kg
Dimensions W: 484 mm H: 88 mm D: 400 mm (2 HU, 19")
Emergency power supply
24 V DC
Technology Class D
Channel separation > 92 dB
Harmonic distortion at nominal level < 0.02 %
  • 583491 Input cable DOM amplifier, 0.5 m, green (two times needed)
  • 583477.21 Output cable 2 amplifier DOM