5pcs Super Small Power Amplifier Board 3W+3W Type D PAM8403 Digital Audio Amplifier Power Amp Module 2.5V-5.5V Dual Channel High Efficiency 90% USB Powered
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- 3High efficiency 90% High efficiency 90%, can provide 3W (left channel)+3W (right channel) when using 4 load and 5V power supply.
- 4Type D power amplifier Type D power amplifier has very high amplification efficiency, sound quality will not be effected by temperature rise, no need of heat sink.
- 5Build-in noise Build-in noise reduction circuit, no noise when power on off, supports short circuit, over current and over temperature protection.
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