PAM8403 Super Mini Digital Amplifier Board 2 * 3W Cl D Digital 2.5V To 5V Power Amplifier Board Efficient

Feature: Model:PA8403 Power:Low Power Super size:1.85*2.11 cm Excellent noise suppreion, in the absence of cirstances connected to input audio ear close to the speaker can not hear any noise, two-channel stereo, 5V power supply can output 3W 3W power, can directly drive 4Ω, 8Ω small speakers, the output power large, full of energy, good sound quality. The unique non-LC filter Cla-D digital power board can be directly used computer USB power supply. Double panel wiring, wiring properly resoe the ground potential caused by balance and inter-channel crotalk, ultra-miniature design, can easily be placed in a variety of digital products within a small space, high amplification efficiency. All using the whole plate welding hine, welding quality comparable non-manual iron! Customer common probl:

1, 2 * 3 w miniature digital power amplifier board cla 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 ace of independent power supply.

2, miniature digital 2 * 3 w cla 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 cla D why there are noise after power on the speaker?

The answer:

1. appear rs, 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 suppreion,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 cla D digital power board, can use computer USB power supply directly. Double panel wiring, properly soe wiring caused by potential balance and crotalk 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 hine, welding quality of the manual 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.

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.