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Item Description

  • After filtering stage rectifier circuit coupled 0.1uf decoupling capacitor， effectively eliminating the parasitic coupling between networks， interference suppressed Wenbo great extent. Rectifier filter capacitor using two 25V/4700uf capacitors， large capacity filter， the power is more pure. Increased three-pin socket， with 3.5MM audio jack， the input signal is more convenient， Speaker and power supply part of all terminals， a great convenience KF301-2T 5.08MM pitch connection requires only a screwdriver can be quick and easy to complete wiring， it is suitable for the majority of DIY players to complete the connection.

Advantages:

  • The amplifier board three-channel output 18W * 3 strong power， peak up to 25W or more. High SNR， almost no static noise， sound quality is very good: treble delicate， soft， transparent， strong bass， full， powerful. The main chip is three original new ST TDA2030A chip， which is responsible for about two-chip channel full-range output， strong power， in addition to a separate subwoofer as input， powerful bass， lead bass part using a divide only imported Philips dual op amp IC (large S NE5532 or NE5532) as a low-pass filter， bass shock full power， very powerful!
 

Note:

  • To cope with the use of the amplifier board， please note the following points:
  • 1.subwoofer box and subwoofer power should be large enough
  • 2.subwoofer cabinets recommended to install the appropriate sound-absorbing cotton， due to the low frequency of the subwoofer output interface， only 50HZ， the general effect of the speaker is not right， so to get a better bass effect， but also need to match good subwoofer
  • Product Name: Audio amplifier board
  • Specifications Model: GF1801
  • Adjustment Type: Master Volume + Treble + Bass
  • Chip Selection: TDA2030A
  • Power range: AC8-18V * 2
  • Recommended Power: AC12V * 2 30W
  • Cooling volume: 80 * 30 * 45mm
  • Board Size: 90.5x81x49mm (length x width x height)
  • Tone board size: 81x49.5x25mm (length x width x height)
  • PCB Material: FR-4 fiberglass board thickness: 1.5mm
  • Channel Type: Stereo + Subwoofer
  • Left and right channels: TDA2030Ax2
  • Bass output: TDA2030Ax1
  • Quiescent Current: 60MA (AC12V time)
  • Signal to noise ratio: 85%
  • Recommended Speaker :30-100W
  • Input Impedance: 2K-3K
  • Output Impedance :4-16Ω
  • Output Power: 18W +18 W (8Ω speaker) 30W +30 W (4Ω speaker) 40W subwoofer
  • Weight: 170g 
  • Please note that the heat sinks cannot be chassis grounded

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