["ZK-1002T Bluetooth-compatible Treble and Bass Adjustment Subwoofer Amplifier Board Channel High Power Audio Double Track Stereo\n\nDescription:\nbrand new and high quality\nFeatures:\nThe higher the voltage, the higher the current and the better the output power, it is recommended to use 18V19V24V power supply with current above 3A. \nCommonly used speakers are generally 4 ohms or 8 ohms, can not distinguish between positive and negative, the effect is the same.\nBluetooth-compatible mode is preferred, can be connected in either mode.As long as the Bluetooth-compatible connection is successful is Bluetooth-compatible mode, and Bluetooth-compatible mode support automatic connection.\nThe potentiometer in the middle is to control the , the right is enhanced, the left is attenuated.\nThe TREBLE potentiometer on the left controls the TREBLE. the right TREBLE enhanced and the left TREBLE attenuated.\nThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\nThe input power is insufficient, and the power supply itself is intermittently powered off, please replace the power supply with a larger power.\nOr the output power is too large, the power amplifier board is seriously heated, and thermal for protection occurs, reducing power usage or enhancing heat dissipation. \nAmplifier board only, other accessories demo in the picture is not included.\n\nProduct Parameters:\nProduct Name: 100W x 2 Bluetooth-compatible audio amplifier module with Tone\nProduct Model: ZK-1002T\nBluetooth-compatible Version: 5.0 (no shielding, 10 meters)\nSNR: >90 dB\nAudio Input: AUX+ Bluetooth\nChannel: 2.0 (stereo)\nChip Solution: TPA3116D2 (with AM interference suppression)\nPower Range: DC12-24V/5A above (high power recommended high voltage)\nAdapter Speaker: 20W-200W, 4-80Ω\nOutput Power: \n20W x @12V, 8Ω 35W x 2@12V,4Ω \n35W x 2@19V,8Ω 60W x 2@19V,4Ω \n50W x 2@24V,8Ω 100W x 2@24V,4Ω\nfor Protection Mechanism: overvoltage, undervoltage, overheating, for DC detection, short circuit for protection\nPS: 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 power. The smaller the impedance 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.\n\nSpecification:\nType: Subwoofer Amplifier Board\nMaterial: Electronic component\nDimension: app.11x7x2.1cm/4.33x2.76x0.83in\nColor: Black\nQuantity: 1 Pc\n\nNote: \n1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\n2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 Pc x Subwoofer Amplifier Board"]