ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX

ZK-MT21 bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP

Feature Product Name  2 1 channel audio amplifier moduleProduct Model  ZK MT21Bluetooth Version  5 0  no shielding  15 meters Input Sensitivity  500mVAudio Input  AUX   BluetoothChannel  2 1Chip Solution  Domestic power amplifier chipPower Range  DC 12 24 V   5A above  Do not connect to 24V battery pack Adapter Speaker  20 100 W  4 8 ?Output Power  Left and right channels 50W  Subwoofer 100WProtection Mechanism  Anti reverse connection  Overheat  Overcurrent  Short circuitProduct Dimensions  93mm 90mm 22mmPackage Weight   about 185g  packaging Tip  Only when the audio input is sufficient and the power supply voltage current is sufficient  there will be sufficient output power  The higher the power supply voltage  the greater the output power  and the smaller the speaker impedance  the greater the output power  Please make sure that the power of the adapter power supply is greater than the actual working power of the amplifier Package includes 1 x 2 1 channel audio amplifier module Requires simple assembly 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 is above 19V 5A  there is no pr