The power supply matched with the board is crucial. The higher the voltage, the greater the current, and the more sufficient the output power. If you only have 12V 1A, it can power a 3-4 inch speaker. If you have 19V 5A or above, it can power an 8-10 inch speaker without any problem. Power supply must be highly regarded
This digital amplifier can serve as a standard mono amplifier board or a subwoofer amplifier board, featuring a pre-operational amplifier NE5532 for buffering and matching. It offers superior power compared to the TPA3116, which lacks pre-driver functionality, available on the market.
Size: 75X60MM
Weight: about 62g
This digital amplifier uses the brand-new TPA3116D2 high-performance amplifier chip from the American company TI as its core. It operates with a single DC power supply ranging from 8-25V, and can deliver a dual-channel output of 50W (left channel) + 50W (right channel), with an efficiency of over 90%. It can be powered by a switching power supply, laptop switching power supply, battery, car power supply, etc. Optional power supply: The power interface is a standard 5.5/2.5 power jack, similar to most laptop power supplies. Power usage range: 12-24V
Note: Adequate output power will only be achieved when there is sufficient audio input and adequate power supply voltage/current. A higher power supply voltage will result in a higher power output. Speakers with different impedances will have different output powers. When the voltage and current are sufficient, the larger the impedance of the speaker, the lower the relative sound power. Please take note!
