Fuhjythy Design 2.1 Power Amplifier Board Multi Function Power Amplifier Board 5V20W Audio Amplifier

The subwoofer must be matched well, and then installed into to make the phase inversion hole. Other parts shall be well sealed. Pay more attention to the speaker impedance, mouth meridian and height. If the impedance and mouth meridian are not consistent with its note stroke, it not be enough. Not only the sound is small, but also there is no shaking of the subwoofer The same board is compared with the following two speakers, both of which are 4 Euro: the sound on the left is also 4 euro, which is not only very small, but also very poor sound quality; on the right performs very well in all aspects This product can drive 5V / 20W (W), based on the principle of circuit, the secondary development and processing, the maximum power can be configured to 20W [10W bass + 10W sub box (5W * 2)]; so the power amplifier board has requirements for power supply and horn,