ZK-TB21 2x50W+100W 2.1 Channel BT5.0 AUX Digital Power Subwoofer Amplifier Board

Features:
1.TPA3116D2 HIFI Chip Solution: Enjoy 50W+50W+100W stereo dual channel output with the 2.1 channel audio power amplifier module, ensuring continuous high power operation with THD≤0.1%. The high-quality filter inductor provides full and clear sound.
2.Bluetooth-Compatible and AUX Audio Input: Experience enhanced transmission efficiency and range with Bluetooth-Compatible 5.0 on this digital audio stereo power amplifier module. Devices without Bluetooth-Compatible can connect via the 3.5MM interface for audio signal input.
3.Safety Protection: The channel subwoofer amplifier board features overheat, reverse connection, short circuit, overvoltage, and undervoltage protection, along with wide voltage DC input of 12-24V for secure operation.
4.Sturdy Design: Using all-copper DC interface and isolated terminals, this high bass adjustment amplifier board withstands large current, resists heat, and protects wiring. Included DC head lead wire is compatible even without an adapter.
5.Independent Bass/Treble Control: With easy-to-use knobs, adjust volume and experience theater-like sound with the subwoofer bass treble power stereo audio AMP, ideal for home theaters, square speakers, and more.

Specification:
Origin: Mainland China
TPA3116D2 HIFI chip solution: Stereo dual-channel output, 50W+50W+100W, ensuring continuous high-power operation, THD≤0.1%. High-quality filter inductors are used, and the sound quality 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 function, you can also input audio signals through the 3.5MM interface;
Safety protection: The power amplifier board has overheating protection, reverse connection protection, circuit breaker protection, overvoltage and undervoltage protection; wide voltage DC input: 12-24V.
Adopting all-copper DC interface and isolated terminals, it can withstand large current, no heat, and no damage to the wire. The DC head lead is compatible with the input power interface of this product, and you can easily connect it even if you don’t have a DC head adapter.
Independent high and low bass control knobs, easily adjust the volume, allowing you to experience theater-like sound effects. TDA3116D2 is widely used in home theaters, square speakers, etc. due to its excellent performance and comprehensive cost performance.
Bluetooth version: 5.0 (unobstructed, 10 meters)
Input sensitivity: 500mV
Input method: AUX+Bluetooth
Number of channels: 2.1 channels
Applicable power supply: DC 12~24V/5A or above (the higher the voltage, the greater the output power)
Applicable speakers: 20~100 W, 4~8 Ω
Output power: left and right channels ≤50w, subwoofer ≤100W
Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection
Product size: 118.00×100.00×22.00mm/4.65×3.94×0.87inch