Amplifier Board 5.0 Bluetooth 2.1 Sound Channel 50Wx2+100W Audio Stereo Amplify Module

Feature: 1. Amplifier Board: Supporting audio input from AUX and 5.0 bluetooth, has higher transmission efficiency and longer transmission distance. 2. Beautiful Sound: 2.1 sound channel enables a maximum output power, 2x50W+100W, and the antenna with base also ensure stable signal. 3. Secure Working: Has all round protection against short circuit, over current, overheating as well as anti reverse protection to prevent failure. 4. Easier Control: Allows for convenient control on bass, treble, subwoofer frequency and volume, so you can freely enjoy the music you want. 5. Wide Application: Through quick and easy connection, the amplifier board is widely compatible with home theatre, large speaker and so on. Specification: Item Type: Amplifier Board Material: Printed Circuit Board Function: Power Amplifier Board Model: ZK-TB21 Chip: TPA3116D2 Bluetooth Version: 5.0 (unobstructed, approx. 10m / 32.8ft) Audio Input: AUX + Bluetooth Number of Channels: 2.1 channels. Input Sensitivity: 500mV Adapted Power Supply Voltage: 12-24V/5A or more (do not connect 24V battery pack). Speaker: 20-100W, 4-8Ω Output Power: Maximum 50W (left and right channel), maximum 100W (subwoofer). Protection Mechanism: Overvoltage protection, undervoltage protection, overheating protection, DC detection, short circuit protection. Package List: 1 x Amplifier Board 1 x Wire Input Socket 1 x Screwdriver Note: 1. The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low power standby state. Turn off the power completely or unplug the DC plug on the machine for a long time. 2. Please use a power adapter with sufficient power to connect to the power amplifier board, otherwise the sound will be distorted. 3. If the audio input is sufficient and the power supply voltage or current is sufficient, there is enough output power. The higher the power supply voltage, the greater the relative power. Speakers with different impedances will have different output power. With sufficient voltage and current, the greater the ohm of the speaker, the smaller the relative sound power. Please make sure that the power of the adapter is greater than the actual working power of the amplifier.