Sell DIYMORE ZK-MT21 ZK-TB21 TPA3116D Bluetooth 5.0 Subwoofer Amplifier Board 50WX2+100W 2.1 Channel Power Audio Stereo Amplifier Tone Board Bass AMP AUX best price

ZK-MT21 Product Name : 2.1 channel audio amplifier module with Tone Product Model : MT21 Bluetooth Version : 5.0(no shielding,15 meters) Input Sensitivity: 500mV Audio Input : AUX+ Bluetooth Channel : 2.1 Chip Solution : Domestic power amnlifior chip Power Range: DC12~24 V / 5A above (vo not connect to 24V battery pack) Adapter Speaker : 20~100 w，4~8Ω Output Power : Max 50W @ R&L channel Max100W @ subwoofer Protection Mechanism : Anti reverse connection、Overheat、Overcurrent、Short circuit Product Dimensions : 93mm*90mm*22mm Package Weight : about 185g ( packaging) PS: In the audio input is enough, the supply voltage/current is enough, there will be enough output power! The higher the supply voltage, the greater the output pow-er.The smaller the impedance of the speaker, the greater the output power! Please ZK-TB21 Product Name ：2.1 channel audio amplifier module with Tone Product Model：ZK-TB21 Bluetooth Version ：5.0 (no shielding， 10 meters) Input Sensitivity：500mV Audio Input：AUX+Bluetooth Channel ：2.1 Chip Solution：TPA3116D 2(with AM interference suppression) Power Range：DC 12~24V/5A above(high power recommended high voltage) AdapterSpeaker：20W~100W，4~8Ω OutputPower：Max50W@R&Lchannel Max100W@subwoofer Protection Mechanism：overvoltage， undervoltage， overheating， DC detection， short circuit protection ProductDimensions：120mm*100mm*20mm/4.72in*3.97in*0.79in PackageWeight：256g/0.56lb PS：In the audio input is enough， the supply voltage/current is enough， there wil be enough output power!The higher the supply voltage， the greater the output power.The smaller the impe dance of the speaker， the greater the output power!Please ensure that the power of the adaptor is greater than the actual working power of the amplifier!