Feature:
Power: Low Power
size: 1.85 * 2.11 cm
Customer common problems:
1, 2 * 3 w miniature digital power amplifier board class D power supply can use the computer?
Answer: power amplifier board can use a computer power supply, but will produce noise may be produced (also some customers did not appear murmurs), the best advice of independent power supply.
2, miniature digital 2 * 3 w class D power amplifier boards with the speaker of the house is good?
Answer: our speaker is only provide DIY players try, sound is not particularly good, if the pursuit of high sound client can buy separately.
3, 2 * 3 w miniature digital power amplifier board class D why there are noise after power on the speaker?
The answer:
1, appear whistlers, should be the audio input line, the introduction of shielded wire should be used for audio input line, and then there is audio input line don’t hung up to connect good audio source.
2, is a kind of reason may be that some power supply is bad interference is very big, switch power supply.
Good noise suppression, under the condition of the connected input audio, ears also can’t hear any noise on the speaker, dual channel stereo, 5 v power supply can output 3 w + 3 w power, can be directly driven 4 Ω, 8 Ω small speakers, big output power, energy, sound quality is good. Unique without LC filter class D digital power board, can use computer USB power supply directly. Double panel wiring, properly solve wiring caused by potential balance and crosstalk between channels, super mini design, can be easily placed in a variety of digital products within a small space, high amplification efficiency. Are all made of solid plate welding machine, welding quality of the manual soldering iron welding comparable!
Note: The left and right channel output of the “negative” and can not be connected together, otherwise it will burn IC, and should be preceded powered speakers connected (load).
Rated working voltage 2.5V ~ 5V, limit operating voltage 5.5V.
Fast Shipping and Professional Packaging
We provide a variety of shipping options owing to our long-running partnerships with UPS, FedEx and DHL. Our warehouse staff is highly educated to pack your items exactly as per the specifications that we supply. Before shipping, your goods will be thoroughly inspected and secured. We ship to thousands of customers every day across multiple countries. This shows that we're committed to being the largest retailer online in the world. Both Europe as well as the USA have distribution and warehouse centres.
Note: Orders containing multiple items will have a distinct processing time for each item.
We will thoroughly inspect all products before they are shipped. The majority of orders will be sent within 48 hours. Expected delivery time is between 3 and 7 days.
Returns
The inventory is constantly changing and we do not fully manage it because of the fact that many parties are involved, including our warehouse and factory. The stock levels may fluctuate at any given time. Please be aware that it is possible for your order to be out of stock after you have placed the order.
Our policy is valid for 30 days. However, if 30 days have passed since you purchased your item, we will not be able to give you a refund or exchange.
You can only return an item in the event that it is not used and is in the same state as when you received it. The item should be in the original packaging.
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