Product parameters:
1. Working voltage: DC12V-18V
2. Use plug specifications: outer ring 5.5mm inner ring 2.1mm
3. Input polarity: negative outside and positive inside
4. PCB board size: length=83.1mm, width=45mm
5. Sound quality effect: can play an unparalleled sound quality
friendly reminder:
1. Attached with circuit schematic diagram and installation instructions, each set is individually packaged.
2. This product does not have a power supply.
3. Pay special attention to the polarity and voltage when selecting the power supply. Improper selection will burn IC.
Secondly, noise and ripple size are the key to sound quality.