The product does not contain a power supply, you need to purchase it separately or bring your own power supply
The power supply of the board is very important. The higher the voltage, the greater the current and the more output power. If you only have 12V 1A, you can bring 3-4 inch speakers. If you are more than 19V 5A, no problem with 8-10 inches, the power supply must be highly valued
The board is soldered and tested and the board channel can be used. Three months warranty
The digital power amplifier can be used as a standard monophonic power amplifier board or as a subwoofer power amplifier board, with a pre-amp NE5532 buffer matching. Better than the TPA3126 without a pre-driver on the market.
The default delivery is to send the subwoofer power amplifier board. If you want full frequency, you can tell us, and we will send full frequency delivery.
Turn the knob to the left to the bottom to turn off the power
PCB size is 75X60MM
Different from TAOBAO&x27;s cheap digital power amplifiers that are sold for the sake of sale, the low cost cannot give full play to the performance of TPA3116. Our key components are customized with 2-3 times as much material, which is the best in terms of performance and price.
100W
It uses the new American TI company TPA3126D2 high-performance power amplifier chip as the core, DC single power supply 8-25V wide operating voltage, 50W (left channel) + 50W (right channel) dual-channel output, and the efficiency is as high as 90%. Can use switching power supply, laptop switching power supply, battery or car power supply, etc...
Optional power supply:
The power interface is a standard 5.5/2.5 power jack, the same as most laptop power supplies
Power supply range: 12-24V
Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there will be enough output power. If the power supply voltage is higher, the relative power will be higher. Speakers with different impedances will have different output powers. In the case of sufficient voltage and current, the larger the ohms of the speaker, the smaller the relative sound power, please pay attention
Precautions for use: In normal operation, first connect the external power supply and the power connector of the digital power amplifier, and then connect the 220V power cord of the external power supply to the mains socket. The wrong way is to connect the mains interface of the external power supply first, and then input the output interface of the external power supply to the digital power amplifier, because the digital power amplifier has a filter capacitor, so the capacitor is charged and discharged, and a small low-voltage spark is generated within 0.1 seconds of contact. Although low pressure has no effect, it is also a bad habit.