Tone Version 50W*2 bluetooth 5.0 Audio Power Amplifier Board Module High and Low Bass Adjustment Subwoofer Dual Channel

Feature Product name 50W Bluetooth audio power amplifier module with toneProduct model ZK 502TBluetooth version 5 0 unobstructed 10 meters Signal to noise ratio 90dBInput method AUX BluetoothChannel Left and right dual channels stereo Amplifier chip TPA3116D2 with AM interference suppression function Adaptable power supply DC9 24V 2A or more the higher the voltage the greater the output power Adaptable speakers 15 100W 4 8ΩOutput power 15W 2 12V 8Ω 30W 2 24V 8Ω 20W 2 19V 8Ω 30W 2 12V 4Ω 40W 2 19V 4Ω 50W 2 24V 4ΩProtection mechanism overvoltage undervoltage overheat DC detection short circuit protectionProduct size 110mm 70mm 21mmProduct weight 154g including packaging Prompt Only when the audio input is sufficient and the power supply voltage current is sufficient will there be enough output power The higher the power supply voltage the greater the output power the smaller the speaker impedance the greater the output power Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifier Package includes 1 x Audio Power Amplifier Board kitQuestionAnswer Q1 How to choose the power supply A The power supply of the board is very important The higher the voltage the higher the current and the greater the output power If you only have 12V 1A you can use a 3 4 inch speaker If you are above 19V 5A there is no problem with 8 10 inch spea