Class H-Power Amplifier
  • 4 channels
  • 4 x 550W @ 4 Ω

4 x 550 Watt @ 4 ohm / 4 x 350 Watt @ 8 ohm / 2 x 1000 Watt @ 8 ohm Bridge

Power consumption 700 W


Frequency response, 4 Ohm load 20kHz, 4 Ohms, +/- 1dB

8 kg (17.63 pounds)

The Tecnare PA Series of power amplifier represent a new era in affordable, high quality performance and reliability with the latest power amplifications technologies. The line consists of five models in a uniform, rugged 2U chassis, the sound quality and durability of class H designs with the innovation of the latest power devices available.

The two models of four channels in the series are the PA4.450 and PA4.1500.

PA4.450 is a 4 channel power amplifier that delivers up to 4 x 550 W RMS @ 4  (2×1000 W RMS bridged @ 8), weighing just 8 kg.

It features independent gain knobs, signal clip and fault LEDs, stereo XLR input, 1.4 V to 0.775 V input sensitivity switch, mono – parallel – bridge switch, speakoON® outputs.

Moreover, it is protected against shorts and open circuits. Thanks to its high efficiency heat sinks and high speed DC fans, the PA4.450 can withstand the hardest heat conditions ensuring great reliability.



  • Easy to configure in stereo / mono / bridge modes
  • Two unit 19″ rack.
  • Front panel signal / clip / protect LED indicators
  • Extensive protective circuits ensure high reliability and operating safety
  • XLR-3 input connectors / SPEAKON® NL4 output connectors


  • Small and medium size PA systems
  • Disco, club and DJ sound
  • TECNARE systems
  • Public Spaces
  • Mobile and fixed installation














General Specifications  
Number of Channels  4
Power Output,all channels driven (RMS) 4 x 550 Watt @ 4 ohm / 4 x 350 Watt @ 8 ohm / 2 x 1000 Watt @ 8 ohm Bridge
Audio Performance  
Voltage Gain  33 dB
Frequency response 4 Ohm load <20Hz to >20kHz, 4 Ohms, +/- 1dB
Inter‐channel crosstalk worst case combination better than ‐75dBr at 1kHz and ‐58dBr at 20kHz
Total harmonic distortion, THD <0.5%, 20Hz-20kHz
Power Supply  
Operation voltage  180-250 V (50/60 Hz)
Power consumption 700 W
Audio Input Analog 4x female NeutrikTM XLR-3
Amplifiers output  4x Neutrik SpeakonTM NL4 connectors
Protection           Protection against short circuits, no-load, on/off muting, RF interference.
Ventilation                                                          Flow-through ventilation front to back
Enclosure                                                              Standard 19” 2U (88mm), 250mm (9.84”)
Net Weight  8 kg (17.63 pounds)







Small and medium size PA systems


Disco, club and DJ sound


Public Spaces


Mobile and fixed installation


PA 4.450