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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|
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|Quantity||3+ units||5+ units||10+ units|
|Rate||US$10.77 shipped||US$10.74 shipped||US$10.70 shipped|
What is Bulk Rate? BulkRate is a semi-wholesale system with items priced separately from retail. When you use bulk rates, a flat $1.70 registered air mail fee will automatically be added to your cart to ensure delivery of package. While BulkRate's intention is to offer cheaper prices when you buy in bulk, because it is priced separately it on occassions show a higher than retail price. That's why we ask you to enter BULKRATE as a coupon code to manually activate the rates. You can always opt not to use the bulk rates. If you are looking for wholesale prices please feel free to contact us.
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