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

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

The subwoofer must be matched well, and then installed into the box 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 will 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 the left is also 4 euro, which is not only very small, but also very poor sound quality; The one the right performs very well in all aspects
This product can drive 5V / 20W (W), based 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 strict requirements for power supply and horn,

Power supply mode and horn selection
A. 5V / 3A power is inserted into the red power socket;
Horn requirements:
Left and right channel sub box horn: 4 ohm / 5W full frequency horn.
Bass speaker: choose 4 (ohm) 10W-15W bass speaker. Never use a 6-ohm or 8-ohm bass speaker;
B. if the power is supplied from the USB socket of the motherboard (5v3a), the USB here can't be charged, please note;
Horn requirements:
Left and right channel speakers: 4 ohm / 3W full frequency speakers.
Bass speaker: choose 4 (ohm) 5W bass speaker. Never use a 6-euro or 8-euro Bass speaker;
Audio source: MP3, MP4, computer, PC, mobile phone
Colour:As shown
Material:PC+Metal

Package Contents:
1 x Power Amplifier Board