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Soundstream X3.71 5200W Class-D Monoblock Competition Series Amplifier

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SKU: X371


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Based Off of Voltage for Tuning Convenience!

5200W Class-D Monoblock Amplifier
The Soundstream X3.71 is based on voltage for tuning convenience. The included chart will tell you exactly how much power you can get from the amplifier at 12V, 14.4V, and 16V, and at 1, 2, and 4 ohms, and even at 1%, 5%, and 10% THD! If you are not getting what the chart says you should, you know for a fact that you do not have sufficient power supply in the form of batteries. Or maybe you have a lot higher impedance or enclosure impedance rise than you suspected. Either way, you will know how much power you are getting out of your X3 amplifier and can take the steps needed to use the X3 amps to their winning potential.


  • Non-Regulated MOSFET Power Supply
  • Wired Remote Bass Level Control Included
  • LED Power (Green) and Protect (red) Indicators
  • Soft Start Turn-On
  • Mono Channel Operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-Way protection circuitry (Thermal, overload, and speaker short protection)
  • High-density split-dome convection heat sink for extreme heat dissipation


  • RMS Power Rating:
    4 Ohms: 1750 Watts x 1Ch
    2 Ohms: 3240 Watts x 1Ch
    1 Ohm: 4450 Watts x 1Ch
  • Frequency Response: 15 – 150 Hz
  • Variable Low-Pass Filter: 18 dB/Octave
  • Subsonic Filter: 18 dB/Octave
  • Phase Control: 180°
  • Variable Bass Boost: 0 ~ +18 dB Bass Boost @ 45 Hz
  • Dimensions: 21″ (W) x 11.5″ (L) x 2.5″ (H)

Soundstream X371 Specs

Weight 3 kg


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