LIVISN DC 12V24V 21 Channel TPA3116 Subwoofer Amplifier Board High Power Audio Amplifier Board 2x50W100W Without Bluetooth

Product Name: Digital Audio Subwoofer Amplifier Board The number of chips: dual-core chips Chip Name: TPA3116D2 Chip protection: overvoltage, undervoltage, overheating, DC detection and short circuit Input voltage: DC 12-24V(current 3-4A or more, the proposed 19-24V / 4-5A above) Input current:> 5A Audio input sensitivity: 500-800mV Frequency response range: 20Hz-20KHz Speaker Impedance: Left and right channel : 3.5-8 Ohm, Bass: 2-8 Ohm The maximum output power: 50W (left channel) +50 W (right channel) +100 W (subwoofer) Maximum output power: 100w (2 ohm speakers connected) Number of channels: 2-channel stereo Power efficiency:> 90% Input impedance: 1k? Output impedance: 2-8 ohm Frequency response range: 14-100KHz Signal to noise ratio: 100db Size: 116 * 81 * 38mm Note: 1.Pls make sure the correct wiring before connecting the amplifier boar 2. Speaker wiring: Pls check our picture ,it was the correct connect; 3. Power on the amplifier board after conforming the wiring. Remember to unplug the power if you want to change the wiring or move the board 4. Power supply cannot be connected to the output interface of the speaker, otherwise the chip will be damaged 5. Please mount install this amplifier board on somewhere without metal and other conductive objects to avoid causing short circuit or current sound Tips 2.0 channel mode: it is recommended to use a max power of DC21V and a full range speaker of 50W*2 4? for the best working condition. 2.1 channel mode: it is recommended to use a max power of DC24V, a L/R speaker of 50W 4? and a subwoofer speaker of 100w 8? for the best working condition