Sound King 2 Channels 3W Pam8403 Class D Audio Amplifier Board 5V Usb Power

Operating Voltage - 2.5V ~ 5.5VInput Voltage (recommended) - 5VInput Voltage (limits) - 5.5VRecommended Input Current - 800 mAType - StereoHe PAM8403 module is a miniature digital 2x3w class D power amplifier board, which can also work on USB power supply. It has good noise suppression when the input audio is via a sheilded wire. When working with a 5v power supply it can directly drive 4 Ω/8 Ω small speakers with big output power and good sound quality. This type of Class D Amplifier without LC Filter is Unique. It is achieved by double panel wiring. The super mini design is an added advantage since it can easily fit in a variety of digital products such as LCD TV Panels, Old speakers, portable mobile speakers etc. Length - 2.11 cm Width - 1.85 cm Weight - 5 g Class - D Please Note: Do not mix the "negative" of the left and the right output channel with the "negative" of the power supply, otherwise it will burn the IC rendering the module useless. Also do not switch on the board without the speakers connected i.e with no load since this will also heat up and damage the IC. Try to use the recommended power supply guidelines. To obtain a noiseless amplification please ensure that the input audio source is properly shielded.

This USB amplifier board is tiny, serves its purpose and with some trouble installed it within the speaker case. I had an old pair of creative speakers which stopped working. I knew the speaker itself is good but the amplifier had died. I didn’t want to spend much money on a new pair of speakers as this is just for my PC audio. I don’t watch movies or listen to songs on these. Volume has to be controlled on the PC which is not a big problems as the keyboard has multimedia keys. There was a bit of Humm but this was quickly rectified when I used an old mobile phone charger to power the amp instead of a USB port on the PC. Overall, if you don’t have high expectations with quality of the sound, this tiny amplifier won’t disappoint you. Happy with the purchase.

Its so tiny but i was amazed to see the performance! its a monster! If you have some old speakers without amplifier lying around simply buy this and connect the wires! very easy to connect as it has holes in the PC board where you can just hook up the wires. no need to solder if you are not into electronics. I had a few old philips satelite speakers of my old Home theater, i connected them to this and the result is awesome. I also got a bluetooth receiver from where I connect to the input. Now I can play music from my mobile through bluetooth.Mobile > Bluetooth reciever (Rs.200 @amazon) > Amplifier Left and Right input > Left and Right Speakers.NOTE: When you place the speakers first test the speakers using some youtube video called "Speaker LEFT and Right TEST". and see if you have places the speakers correctly.Enjoy!

Sound quality is excellent but it is working for only single speaker if i connect another speaker then the audio is not releasing through speakers . As it is a dual speaker one but its working for only 1 speaker

its smaller than it looks but it has power to drive big speaker but the sound is distorting at higher volume i paired them with a couple of 3 w speakers but more than 20 vol the sound is not good and makes an irritating sound idont know maybe it needs bigger speakers the price could be a little cheaper

CANT HANDLE A LOUD VOLUME.... WITH SOME EXTRA VOLUME IT CANT GIVE GOOD OUTPUT AUDIO AND A LOT OF BUZZING SOUND WHEN ITS NOT CONNECT TO INPUT AUDIO SOURCE...BUT PRODUCT IS VERY SMALL AND VALUE FOR MONEY..

Item receivded is working well. no worries. Good to buy this one. Connected my 6ohm speakers L and R and both are good. 5v 1A power supply is ok for this. I first connected speakers and then gave power supply so that there is load. All good so far. Wish it had pins or screws to connect the wires, now need to solder.

Good product.The bass quality is just amazing, I upgraded my F&D E200 sound bar with this amplifier and combination of Bluetooth module for improving sound as well as giving capabilities of Bluetooth sound routing. But if u r building the Bluetooth speaker then go for a single module which is available at bangdood website within 350 Rs. Both amplifier and Bluetooth connectivity is is single module.