D800 D900 D1500 220V 12V 24V Digital Bluetooth 5.0 Multi-function Amplifier Board High and Low Pitch Super Heavy Subwoofer High Power Reverberation Adjustment Karaoke

Specification:Product Name: 2.1 Channel Bluetooth Amplifier BoardProduct model: D1500Bluetooth version: 5.0 (unobstructed, 10 meters)Input sensitivity: 500mVInput method: Bluetooth+AUX+MICFM+USB+TF cardNumber of channels: 2.1 channelsAmplifier chip: Original American chipAdaptive power supply: DC 12-24V/5A (the higher the voltage, the greater the output power)Compatible speaker: 20~100W, 4~8 ohmsOutput power: Left and right channels ≤ 50W, subwoofer ≤ 100WProtection mechanism: overvoltage, undervoltage, overheating, AC/DC detection, short circuit protectionHeat sink size: 50 * 25 * 10 (mm)Product weight: approximately 680g (including packaging)Product size: 250 * 85 * 80 (mm)Tip: Only when there is sufficient audio input and sufficient power supply voltage/current, will there beSufficient 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 ensure that the power of the adapter is greater than the actual working power of the amplifier!