ZK-XPSM 150W*2 Dual Channel Bluetooth Audio Power Amplifier Board Stereo AMP TDA7498E Treble Bass Adjustment AUX Home Th

Specification Product Name 2 0 channel audio amplifier module with ToneProduct Model ZK XPSMBluetooth Version 5 0 no shielding 15 meters Audio Input AUX BluetoothChannel 2 0 Left channel right channel Chip Solution TDA7498EAdaptive power supply DC 12 32 V Under voltage protection below 9V and 12V power supply can also be supported Adapter Speaker 30 200W 4 8ΩOutput Power Max 150W RL channelProtection Mechanism Anti reverse connection under voltage overheating over current short circuit protectionProduct Size 119 x 70 x 21mm Product weight 135gPackage weight 175gPackage included 1 x Bluetooth Audio Power Amplifier BoardNote When the audio signal input is large enough and the power supply voltage current is large enough there will be enough output power The higher the power supply voltage the greater the output power the smaller the speaker impedance and the greater the output power Please ensure that the power of the adaptive power supply is greater than the actual working power of the power amplifier FAQ 1 How to choose a power supply The power supply with the board is very important The ripple of the selected power supply must be small A power supply with a large ripple will cause the bottom noise of the power amplifier board to become larger and there will be current noise The higher the voltage the greater the current and the more adequate the output power The power supply is 12V1A and can be equipped with 3 4inch speakers If it i