Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 for Home Theater DIY Wireless Speakers

Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 HiFi Treble and Bass Control Stereo Digital Audio Amp Board for Home Theater DIY Wireless Speakers

Bluetooth 5.0 50W+50W+100W 2.1 Channel Subwoofer Amplifier Board TPA3116D2 for Home Theater DIY Wireless Speakers

ZK-TB21 Bluetooth Amplifier Board Input Voltage: DC 12V-24V Max Power Output: 50W*2 R&L +100W Subwoofer Input Method: Bluetooth & AUX Channel: 2.1 CH Stereo Output Output Impedance 4-8 Bluetooth Version BT 5.0 Protection Functions: Reverse Connection Protection Short Circuit Protection Self-recovery Overheat Protection Size: 120*100*22mm Weight: 195g NOTE: Only when the audio input is sufficient and the power supply voltage/current input is sufficient, can there be enough power output. The higher the power supply voltage, the greater the output power; The smaller the impedance of the speaker, the greater the output power. It is recommended to use a 4 speaker. Finally, please make sure that the power of the adapted power supply is greater than the actual working power of the AMP to ensure the maximum output power. Warm Reminder: 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. To completely turn off the power or unplug it for a long time, you can unplug the DC plug on the machine. Properly increasing the voltage or reducing the speaker impedance can effectively increase the output power. Packing Include: ZK-TB21 Power Amplifier Board * 1 Protective Shell * 1 Set DC Plug * 1 Screwdriver * 1 Knob * 5

Key Features

• ✅ TPA3116D2 HIFI chip solution: stereo dual-channel output, 50W+50W+100W, to ensure continuous serial high-power operation, THD 0.1%. Using high-quality filter inductors, the sound is full and clear.
• ✅ Bluetooth and AUX audio input: Bluetooth 5.0 version, higher transmission efficiency and longer distance. If your playback device does not have Bluetooth, you can also input audio signals through the 3.5MM jack;
• ✅ Safety protection: The power amplifier board has overheat protection, reverse connection protection, circuit breaker protection, overvoltage and undervoltage protection; wide voltage input DC: 12-24V.
• ✅ Features copper DC connectors and barrier terminals. It can withstand high current, does not generate heat, and does not damage the wire. The free DC head lead is compatible with the input power interface of this product, even if you don't have a DC head adapter, you can easily wire it.
• ✅ Independent high and low bass control knobs, easy to adjust the volume, allowing you to experience theater-like sound effects. With its excellent performance and comprehensive cost performance, TDA3116D2 is widely used in home theaters, square speakers, etc.

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