1-3 days to most DE regions and 2-8 days to Most EU countries for shipping from Germany.
Features:
  • [Multiple audio inputs]: with Bluetooth/3.5mm AUX/U-disk  inputs, almost compatible with all home audio device such as phone, tablet, computer, CD player etc., also comvenient for you to DIY.
  • [Bluetooth 5.1 & Classic TPA3116 chip]: supporting Bluetooth 5.1 to realize stable & high-speed transmission speed. 2PCS TPA3116D2 chip, one for bass channel and one for left and right channel amplification. Max output power can reach 50W*2(L/R) and 100W(subwoofer), easily to drive most home desktop / bookshelf / indoor passive speakers.
  • [Powerful design & wide voltage]: with preamplification and bass frequency division processing, 5PCS potentiometer are used for bass volume/bass frequency/left & right channel volume/main volume & input switch. DC 12-24V voltage, can be powered by switching power supply or storage battery, for enjoying high-quality music on the road or outdoors.
  • [Perfect circuit & HiFi clear sound]: concise layout and reasonable wiring, no pop and audible noise even at high power output. The sound is very clear and smooth, the bass with shocking effects just like in the cinema, providing auditory feast.
Parameters:
  • Audio input: Bluetooth/3.5mm AUX/U-disk
  • Audio output: raw cable speaker jacks + subwoofer jacks
  • Bluetooth version: 5.1
  • U-disk support format: WMA/MP3/WAV/FLAC
  • Max output power: 100W(subwoofer)+50W*2(L/R)
  • Input sensitivity: 600-800mV
  • Frequency response: 20Hz-20KHz
  • Speaker impedance: 4-8Ω
  • Subwoofer impedance: 2-8Ω
  • Working voltage: DC 12-24V
  • Board Dimensions(L*W*H): 100*100*22mm / 3.94*3.94*0.87in
  • Net weight (Board): 180g / 0.40lb
  • Package weight(without case): 260g / 0.57lb
  • Package weight(with case): 350g / 0.77lb
The relationship between output power, input voltage and speaker impedance:
GFB1388
 
If you want the matched 19V power supply please click: LINK 
Packing List
  • 1*Finished Board (optional)
  • 1*Finished Board + Case (optional) 
  • Notice: the case is packaged separately from amplifier board, you need to assemble the case with other accessories such as screws, shim, knobs etc.
Warm Tips
3-PIN interface is unavailable. If you need the 3-pin input, please connect the two points shown in the picture with tin.; but please noted it will not switch automatically after connecting 3.5mm AUX.
 
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