2.1 Multi Function Power Amplifier Board DC Voltage 5V 20W 3A

Power requirements:

• DC Voltage 5V (4.8-5v), current more than 3A;

• secondly, mobile power should use the original genuine manufacturers, and ensure the discharge capacity to meet the standard (because this kind of product is lithium battery through the way of boosting), Shanzhai not only can't keep up with the current, but also can't keep up with the constant current.

• In particular, its instantaneous current can't keep up with it (it can't drive or distort the sound) and it's easy to damage the board. Pay attention!!

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 Ω / 5W full frequency horn.

• Bass speaker: choose 4 (Ω) 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 Ω / 3W full frequency speakers.

• Bass speaker: choose 4 (Ω) 5W bass speaker. Never use a 6-euro or 8-euro Bass speaker;

• Audio source: MP3, MP4, computer, PC, mobile phone