CA-8403S Mini Digital Preamplifier Board DC 5V 2 Channel 2*3W PAM8403

1. small digital amplifier chip 2. high-definition sound to highlight the advantages of digital chips 3. circuit surrounding the most reasonable configuration 4. power supply filtering is upgraded to 470uf 1.6mm glass plate 5. output 3W + 3W high-fidelity sound, the potential use of original anti-meter body 6. Excellent noise suppression, in the absence of circumstances connected to input audio ear close to the speaker can not hear any noise 7. two-channel stereo, 5V power supply can output 3W 3W power, can directly drive 4?, 8? small speakers 8. The unique non-LC filter Class-D digital power board can be directly used computer USB power supply 9. Double panel wiring, wiring properly resolve the ground potential caused by balance and inter-channel crosstalk 10. ultra-miniature design, can easily be placed in a variety of digital products within a small space, high amplification efficiency. 11. life expectancy up to 15 years, with switch potentiometer can be directly counter-clockwise off the power