Sell ZK-502L Bluetooth 5.0 Audio Digital Power Amplifier Board 50Wx2 best price

The potentiometer adjusts the volume with a switch for easy control of the volume, making it perfect for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna. The copper DC connector is used to withstand high current and no heat. 470uf35V solid s ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality. Free DC head lead, compatible with the input power interface of this product, even if you don't have a DC head adapter or battery, it can be easily wired. 5.0 Bluetooth version, the transmission efficiency is higher, the transmission distance is farther. Notes for use: the power switch on the board is standby switch, and the machine is in standby state with low power consumption after the switch is turned off. To completely turn off the power or to remove the DC plug on the machine for a long time, it is ok. Product Name:2X50W Bluetooth digital power amplifier board el: ZK-502L Adaption Supply Voltage: 5-24V (Optional 9V/12V/15V/18V/24V adapter, high power recommended high voltage) Adapter Speaker: 30W-200W, 4Ω-8Ω Number of Channels: Left and right stereo (Stereo) Bluetooth Version: 5.0 Bluetooth Transmission Distance: 15m(Without occlusion) Protection Mechanism: Overheating protection,Short Circuit protection Tip: To have enough output power if the audio input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the larger the ohms of the horn, the smaller the relative sound power. Please pay attention! Power Supply Voltage: 12V------8hom speaker/12W (Left channel) + 12W (Right channel), 4 ohm speaker/20W + 20W 15V------8homs /18W + 18W, 4 ohm/greater than 30W + 30W 19V------8homs /32W + 32W, 4 ohm/greater than 45W + 45W 24V------8homs /38W + 38W, 4 ohm/greater than 50W + 50W Maximum Power Per Channel: 50W el Number: ZK-502L Channels: 2 (2.0) colour:black Material:Metal +pc Package Contents: 1* Bluetooth 5.0 Digital Amplifier Board 1* shell 1* screwdriver 1* power cord Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.