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Product Introduction:
4 Channel Digital DSP Audio Power Amplifier with Touch Screen、Processor And Network Interface
  • features


    The new Class D type,4 channel digital ampl ifier adopts a new generation of stabi l ized switching power supply,

    which has more power, better stabi l ity and l ighter weight.

    DSP digital processing, bui lt-in EQ, l imiting, delay and other ful l-featured of speaker processor

     4-inch display color screen, ful l touch operating system

    With network and USB interface, through PC software operation, to achieve remote parameter adjustment, and

    to achieve multiple ampl ifiers onl ine operation

    CPU real-time detection display, high frequency protection, overload, over current protection, over temperature

    protection, output short circuit protection, DC protection, distortion l imiting protection, etc.



    Model    DSP4090 DSP4120
    Rated Power 8Ω Stereo: 900W*4 1200W*4
    Rated Power 4Ω Stereo: 1800w*4 2200w*4
    Frequency Response (±3 dB):          20Hz-20KHz 20Hz-20KHz
    Total Harmonic Distortion: <0.05% <0.08%
    Signal to Noise Ratio: >103db >105db
    Coefficient of Damping: >1000(100Hz) >1000(100Hz)
    Resolution:    >70db >75db
    Conversion Rate : >20V/µs >25V/µs
    Input Sensitivity:  1.0V 0.77V/1.0V/1.4V
    Input Resistance: 10kΩ/ 20kΩ 10kΩ/ 20kΩ
    Output Circuit: Class-D Class-D
    Net Weight:    13.5 kg 13.5 kg
    Product Size ( W x D x H):  483x 390x 88mm 483x 400x 88mm
    Packing Size ( W x D x H): 530 x 440 x130mm 530 x 450 x130mm

  • Comment

DM20new version update step


1) Copy the compressed package to the USB flash drive (note that you don't need to decompress it, it is best to format the USB flash drive first)


2) Insert the USB flash drive into any USB port of the mixer, and click “SETUP” on the mixer panel → “Maintenance” → “Update from USB” in the screen


Follow the prompts to complete the installation steps.

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