Bluetooth 5.0 Amplifier Board, 100W Dual Channel DC8-24V Audio Amp, Easy Phone Connectivity

ZK-502C 19V 4.74A Power Adapter

Customer Reviews: - 4.5 out of 5 stars, 954 reviews - 5.0 out of 5 stars, 1 review

Price: $15.99

Product Description:

This power adapter, the ZK-502C, is designed to provide 19V 4.74A of power. It features a wide input voltage range of 100-240V, making it compatible with various electrical systems around the world. The adapter utilizes TPA3116D2 chips, which incorporate an AM interference suppression function, ensuring excellent sound quality even during high-power operation for extended periods, with a total harmonic distortion (THD) of less than 0.1%.

The power adapter offers two audio input options: Bluetooth 5.0 for wireless connectivity, or a headphone (line-in) port for wired connections. This flexibility allows users to choose the most suitable input method for their needs.

To protect the device and its connected components, the power adapter is equipped with a range of safety features, including over-voltage protection, under-voltage protection, over-heat protection, and short-circuit protection. These safeguards help to ensure the reliable and safe operation of the system.

It's important to note that the output power of the adapter will be higher when the audio input is sufficient, and the power supply voltage and current are adequate. However, the impedance of the connected speaker will affect the relative sound power output. In cases where the voltage and current are sufficient, a larger speaker impedance will result in a lower relative sound power. Users should be mindful of this relationship when selecting speakers to pair with the power adapter.

Additional usage tips: 1. Keep the power amplifier board as far away as possible from WIFI signals (routers) to avoid interference. 2. Remove the film from the heat sink and attach it to the chip to facilitate heat dissipation. 3. Use a power supply of 2A or higher for optimal performance. 4. Avoid using excessively long wires to prevent signal interference. 5. It is recommended to use a speaker with a power rating of 50W or higher to avoid potential speaker damage. 6. Remove the protective film from the acrylic board before use. 7. Refer to the user manual and product description for further information and guidance.

product information: