Bluetooth 5.0 Dual Channel 100w Audio Amplifier Board

Product Description The ZK-502C 19V 4.74A Power Adapter is a high-quality, reliable power adapter designed to meet your charging needs. It features a voltage input of 100-240V and a voltage output of 19V 4.74A MAX. With a power output per channel of 50W+50W, this power adapter has a plug style of 5.52.5mm and is compatible with 5.52.1mm. The working voltage is DC 9-24V, with a recommended input above 12V/3A. It is recommended to use speaker parameters of 20-100W at 4-8Ω. This power adapter also comes with treble and bass control, heat dissipation, and a mini heat sink.

Specifications The work voltage for the ZK-502C power adapter is DC 9V-24V, with a recommended input of 2A or higher. The communication distance is 15 meters without obstacles. The power adapter should be kept as far away as possible from WIFI signals to avoid signal interference. It is also important to remove the film from the heat sink and attach it to the chip. The recommended power supply voltage is DC 9-24V, and it is suggested to use a power supply of 2A or higher. Using long wires should be avoided to prevent signal interference, and it is recommended to use a speaker above 50W to avoid speaker damage.

HIFI CHIP The ZK-502C power adapter utilizes the TPA3116D2 chips with AM interference suppression function, ensuring excellent sound quality with THD less than 0.1%. It operates with a wide input voltage range of DC 9V-24V and can be powered by 9V/12V/15V/18V/24V.

Two Audio Input Ways This power adapter allows users to connect wirelessly via Bluetooth 5.0 or choose the headphone (line in) way for audio input.

Protective Function The ZK-502C power adapter is designed with a protective case and features over-voltage protection, under-voltage protection, over-heat protection, and short-circuit protection to ensure the safety and longevity of your device.

It is important to note that an adequate output power is required when the audio input is sufficient and the power supply voltage/current is sufficient, resulting in higher relative power. Different impedance of the speaker will have different output power. In the case of sufficient voltage and current, the larger the impedance of the speaker, the smaller the relative sound power.

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