EFX800.4 Class-AB 4-Channel Amplifier

Sleek, Stylish, Aggressive! The result of XFIRE AUDIO’s commitment to design and build sleek, elegant, yet seriously powerful amplifiers able to fit into any audio application with ease. With their stunning cosmetic design, LED backlit XFIRE logo combined with outstanding technologies like Full Range Class D we’ve raised the bar on audio amplification and done it with style. EFX Series Amplifiers are sleek and modern but don’t be fooled by their sophisticated allure, these powerhouses crank out a deadly punch in knockout fashion. No filler, 100% killer. Are you ready to rock?


  • Class-AB topology design.
  • Sonic sculpting contours.
  • LP/HP crossovers.
  • Design your soundstage.
  • Small, sleek, blacked-out all aluminum chassis.
  • “Direct Device Mount” component pc boards assuring the ultimate in quality and performance.
  • Tight tolerance components for improved signal to noise ratios for superior musical reproduction from the very first note.
  • ISOTEK protects against thermal overload, low voltage and short circuits.


  • RMS Power (14,4V) 0,5% THD : 4x 100W @ 2Ω
  • RMS Power (14,4V) 0,5% THD : 4x 75W @ 4Ω
  • Bandwidth : 10 - 25000Hz ±1dB
  • Input Sensitivity : 200mV - 5V
  • Signal to Noice (IEC-A) : >80dB
  • Low Pass filter : Adjustable 50 - 750Hz
  • High Pass filter front channels : Adjustable 10 - 200Hz
  • High Pass filter rear channels : Adjustable 50 - 750Hz
  • Dimensions LxWxH : 297x150x58mm