Karaoke Mixing Amplifiers Better Music Builder (M) DX-388 Beta 900W Professional Mixing Amplifier

Better Music Builder (M) DX-388 Beta 900W Professional Mixing Amplifier

Better Music Builder (M) DX-388 Beta 900W Professional Mixing Amplifier
SKU dx388beta
Weight 35.30 lbs


Because of the popularity of our DX-388 Series Mixing Amplifier, Better Music Builder (M) is bringing a new model into the series to join our DX-388 G3 in the product lineup. We are thrilled to introduce the newest 2018 upgrade model, the DX-388 Beta Mixing Amplifier.

Different from its predecessors is the greater number of audio outputs the new DX-388 Beta has. The DX-388 Beta Mixing Amplifier features 5D technology. The technology enables the set up of two main speakers, two rear speakers, and a center/subwoofer speaker to bring the live experience to your home. The center speaker and subwoofer come with their own individualized volume control, bringing a new field of dynamic for karaoke singing.

The new DX-388 Beta Mixing Amplifier, like all the previous DX-388 models before it, uses the latest and the most innovative technology to produce the highest quality sound, the most precise clarity and the strongest reliability. In addition, we are bringing back a more traditional approach to the DX-388 Beta that many will undoubtedly appreciate. The new model is equipped with a familiar equalizer. The analog equalizer gives users full control like never before, enabling them to really refine the settings to their hearts’ content.

Get ready to experience the best live karaoke performance you’ve ever had!


  • 5-Channel Mixing Amplifier
  • Microphone Equalizer
  • Microphone Exciter
  • Music Tone controls Bass, Midrange, Treble, and Balance: music channel provides +/-12dB adjustment for middle and bass, and +/-10dB adjustment for treble.
  • Microphone Echo Effect controls Delay and Repeat
  • 7-Steps key control
  • Individualized volume control for center speaker and subwoofer
  • Available to adjust frequency 80Hz~250Hz of SUB channel.
  • PC remote control capability
  • Smart Audio Input Select (SAIS): priority selection of audio inputs.
  • BGM sensitivity of checking signal.
  • Inputs: 5 microphone inputs (3 front and 2 rear) and 3 audio inputs
  • Outputs: 3 audio outputs
  • Dedicated wireless microphone connection input in 3 groups. The volume of each group can be adjusted separately, with each group providing +8dB/-12dB adjust ment for treble, middle, and bass.
  • LED indicator for signal output.
  • Smart fan


  • Power Output: 3x300W (1kHz, 8 ohm)
  • THD: 0.02% (1KHz, 100W, 8ohm)
  • Frequency Response: 20Hz~20kHz, ± 1 dB
  • Tone Electrical Circuit:
      • BASS Control: 100Hz ± 12dB
      • MID Control: 1kHz ± 12dB
      • TREBLE Control: 10kHz ± 12dB
    • MIC PART:
      • BASS Control: +8dB/-12dB
      • MID Control: +8dB/-12dB
      • TREBLE Control: +8dB/-12dB
  • Input Sensitivity/Impedance:
    • MIC: 20mV/2k ohm
    • LINE: 200mV/10k ohm
  • Effect: ECHO
  • Load Impedance:
    • Output Impedance: 4~16 ohm
    • Recommendatory Impedance: 8 ohm
  • Static Power Consumption: 35 Watts
  • Power Consumption: 120V 60Hz, <1300Watts
  • Dimensions (WxHxD): 17×5.7×15.8 in / 43x14.5x40 cm
  • Packing Dimensions (WxHxD): 22.1x8.9x17.9 in / 56.1x22.6x45.4 cm
  • Net Weight: 32 Lbs / 14.5 Kg
  • Shipping Weight: 40.8 Lbs / 18 Kg
  • UPC Code: 743062980452
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