ขาย hifi บอร์ดขยายเสียงดิจิตอลไร้สายบลูทูธ 5 . 0 tpa 3116 d ราคาที่ดีที่สุด

AUX + Bluetooth You can choose AUX input or Bluetooth input at will. Bluetooth 5.0 is compatible with most devices and phones on the market. You are free to control the module in 15 meters range. When both are input at the same time, Bluetooth will be prioritized. 50W Stereo Output This stereo audio amplifier module works with DC 5V-27V and 4/8 ohm 30W-200W speakers. Please note that enough input voltage and current is necessary to make sure enough output power. How to choose a power supply? The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate. How to choose a speaker? Commonly used speakers are generally 8 ohms, can not distinguish between positive and negative, the effect is the same, 4 ohm speakers can also be used. If your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V. If you are a 50W-200w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power. It is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality. 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 55W + 55W Colour: Black Material: metal + pc HIFI Excellent Sound Using TPA3116D2 chip, a class D chip whose distortion is less than 0.1% even under high power operating. Built-in filter capacitor can filter out the noise to make the vocals clearer and ensure the output of high quality music. Product Name:2X50W Bluetooth digital power amplifier board Model: ZK-502C Chip Solution: TPA3116D2(with AM interference supperession) With or Without Filter: Yes(filtered sound is more round and clear ) Adaption Supply Voltage: 5-27V (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, undervoltage,overheating,DC detection,Short Circuit protection Tip: To have enough output power if the audio input is sufficient and the supply voltage/current i