Subwoofer Amplifier Board 100W 500mV 2.1 Channel Easy Control High Safety ZK TB21 Power Amplifier

Feature: 1. Multiple Inputs: With BT 3.5mm AUX3 PIN input, This amplifier board is compatible with almost all home o devices, such as mobile phones, tablets, computers, CD players, etc. 2. Easy Control: This ZK TB21 power amplifier board has subwoofer volume control, L and R channel treble and bass can be independently controlled. Inbuilt subwoofer low pass filter, with crossover control. 3. Output Power: 2.1 CH stereo output power is 50Watt x 2 and 100Watt, working voltage range is DC12 to 24V, suitable for 4 to 8 Ohm , 50Watt to 300Watt passive speakers. 4. Simple Layout: This 2.1 channel amplifier board with simple layout popping and ble noise will not occur even under high power output. 5. High Safety: This stereo amplifier board supports reverse polarity protection, over and under voltage protection, overheat protection, short circuit protection. Specification: Item Type: Subwoofer Amplifier Board Material: Aluminium Model: ZK TB21 Power Amplifier Chip: TPA3116D2(with AM Interference Suppression Function) Output Power: Left and Right Channel < 50W, Subwoofer <100W Input Sensitivity: 500mV Input Method: AUX + BT BT Version; 5.0(10 Meters Distance without Blocking) Number of Channels: 2.1 Channel Applicable Speaker: 20-100W, 4-8 Ohm . Package List: 1 x Upper Cover Plate1 x Down Cover Plate1 x Mainboard9 x Screw1 x Screwdriver1 x Power Adapter4 x Large Copper Pillar4 x Small Copper Pillar5 x Knob Cover