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The board powerful bass , treble, clear and melodious. TDA2030A replaced LM1875 also performed well , if you want to replace the LM1875 recommended for large heat sink . TDA2030A only have five pins: positive power and negative power , positive input , reverse input and output. TDA2030A and negative heat sink is connected with a dual power supply, heat sink and ground do not short-circuit , or immediately burned TDA2030A.
New board major improvements :
Feature MP3 decoder board audio input pin holder ( specifications 3P-2.0mm) and to the decoder board 9V DC power supply output pin holder (2P-2.0m)
Advantages of the board :
18W * 3 strong power, peak up to 25W or more. High SNR , almost no static noise , sound super good : treble delicate, soft , transparent, strong bass , full, and powerful. Circuit core three new ST TDA2030A manifold , which is responsible for about two channels , in addition to a subwoofer for use , the use of an imported dual op amp ( large S NE5532 or Philips NE5532) do bass preamp before so powerful bass , treble crisp and sweet , the measured push 100W8 inch Swans speakers equally easy. The new component materials : rings precision metal film resistors , monolithic capacitors , polyester capacitors , electrolytic capacitors, connectors , and power plug speaker terminals used in all 5.08 , the whole process takes only a small screwdriver wiring without soldering on the circuit board , it is suitable for electronics enthusiasts and audiophiles rapid improvement and maintenance of multimedia 2.1 amplifier system .
|Material||Glass fiber + plastic + iron|
|English Manual / Spec||Yes|
|Dimensions & Weight|
|Dimensions||5.51 in x 3.15 in x 2.28 in (14 cm x 8 cm x 5.8 cm)|
|Weight||5.36 oz (152 g)|
|1 x Amplifier Board|
|Quantity||3+ units||5+ units||10+ units|
|Rate||US$10.77 shipped||US$10.74 shipped||US$10.70 shipped|
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