2*3W PAM8403 PAM 8403 5V Class D USB Power Amplifier Board

 2*3W PAM8403 PAM 8403 5V Class D USB Power Amplifier Board 

    SL-RD08 is excellent noise suppression amplifier, in the absence of circumstances connected to input audio 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 Class-D digital power board can be directly used computer USB power supply. Double panel wiring, wiring properly resolve the ground potential caused by balance and inter-channel crosstalk, 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 machine, welding quality comparable non- manual soldering iron!

• Power speaker
• Digital product
• Computer and PC multimedia 
• Television
• Powered system
• DVD player
• Earphone 

• Can use the computer USB port 5V power supply or using a mobile phone charger USB port 5V power supply, battery power can also be used
• high efficiency:90%
• can provide 3W (left channel) +3 W (right channel) output power in the 4 load  at 5V power supply conditions
• Class D amplifier efficiency is extremely high, when the temperature is a little high not affect the sound quality
• No need to add heat sink and take less space
• noise canceling circuit was built in the amplifier board
• power on / off without pop noise
• module has a short-circuit current protection and over-temperature protection

         Operating voltage: 2.5V-5.5V

    Speaker With:4-8ohms
    Speaker Power :2-8W
    Size:21 x 18 x 3.4mm(L x W x H)

    Net weight:1g

l  Connect power to DC+5V (the power can be 2.5V~5V) according to the above picture.

l  Connect exciter wires to Left and Right port according to the above picture.

l  Connect audio input port according to the above picture.

l  Plug the audio jack to MP3/phone or other device, Open 5V power. you can listen the music from SL-RD08

l  If you adjust voltage (2.5V~5V), or use Li-ion recharge battery(3.7V), the output will be a little decrease.