diymore [100% Chính Hãng] Bộ Dụng Cụ Điện Tử Tự Làm Bộ Khuếch Đại Công Suất Mini Bộ Lắp Ráp Sản Xuất Loa Điện Tử Bộ Dự Án Hàn Thực Hành Loa Hàn

parameter;
Working voltage: 5V
Current: more than 1A
Amplifier power: 3W*2
Power supply method: mobile phone charger (power bank and computer are not recommended, because the computer current is too small, it will affect the sound quality, it is recommended to use 2A current for power supply) directly weld the power socket and plug it in directly. Solder the 4 shielded wires one by one, D1 D2 VCC GND.

Precautions:
1. When welding the power switch, try to control the welding time within 3 seconds to prevent the switch from being damaged by excessive temperature! (You can tin the switch pins first, then solder the wires)
2. Due to the limited current output by the USB port of the computer, if it is plugged into the USB port of the computer to supply power, the sound quality will be greatly reduced when the volume is turned up or the bass is heavier, so it is recommended to use a separate USB power supply (output 1A or more) to power the speaker.
3. There are sop8 SMD components on the back, you need to be sure to buy the spare parts.
4. Since the digital volume control in the power amplifier chip has a large gain, when increasing its volume, be careful not to make the input signal too large to cause the signal to cut and limit, resulting in sound distortion.
5. The acrylic shell needs to be assembled by itself. There are positive and negative sides. If it is installed incorrectly, it can be installed in reverse. easier. Need to tear off a layer of paper is the transparent shell.
Note: The main audio has a power switch, but the sub audio does not. If you buy a single audio, it is equipped with a power switch. There are volume adjustment knobs, and spectrum adjustment knobs.

DIY must-reads:
Electronic production is an activity that requires a certain electronic foundation and hands-on ability. Due to the different hands-on ability and technical level of each friend, we cannot guarantee that all friends can DIY successfully

Package list:
Mini Speaker Kit*1"

Precautions:

1. When welding the power switch, try to control the welding time within 3 seconds to prevent the switch from being damaged by excessive temperature! (You can add tin to the switch pin first, and then solder the wire)

2. Because the current output from the computer USB port is limited, if you plug it into the computer USB port for power supply, the sound quality will be greatly reduced when the volume is increased or the bass is heavy, so it is recommended to use a separate USB power supply (output 1A or more) to power the speakers.

3. There are sop8 patch components on the back, so you need to be sure to buy spare parts.

4. Because the digital volume control in the power amplifier chip has a large gain, when increasing its volume, be careful not to make the input signal too large, which will cause the signal to be cut and limited, which will cause the sound to be distorted.

5. Acrylic shell needs to be assembled by yourself, there are front and back sides, the wrong one can be installed in reverse. easier. You need to tear off a layer of paper to get a transparent shell.

Note: The main speaker has a power switch, but the sub speaker does not. The one that buys a single speaker is equipped with a power switch. There are volume adjustment knobs, and spectrum adjustment knobs.