1. Chip type: TPA3116D2
2. Chip protection: overvoltage under-voltage superheat DC detection short circuit
3. Supply voltage: DC 12V to 24V
4. Output power: 120W X 2
5. Power efficiency > 90%
6. Number of channels: double channel output
7. Module Size: 60 x 32 x 14mm

Features: 

• 🔊 High Power Output – 2x120W: Delivers up to 120W per channel using the TPA3116D2 Class D chip. Ideal for stereo speaker builds, subwoofers, and high-volume audio projects.
• ⚡ Wide DC Voltage Input (12V–24V): Compatible with a broad range of power sources including battery packs, laptop adapters, and regulated power supplies.
• 🎚️ Independent Left/Right Volume Controls: Onboard potentiometers allow precise adjustment of left and right channels separately for perfect audio balance.
• 🧰 Robust Build with Heat Dissipation: Equipped with large heatsink, quality capacitors (330µF 35V), and shielded inductors for stable long-term performance.
• 🎯 Plug-and-Play Ready: Comes with pre-soldered terminal blocks and 3P audio input cable – perfect for DIY Bluetooth speakers, car audio upgrades, and home theater systems.

DC 12V To 24V 2X120W XH-M543 Dual Channel Digital Amplifier Board High And Low Adjust Onboard Operational Amplifier.

High-efficiency class D operation, with > 90% power efficiency and low idle loss characteristics, advanced modulation system configuration, multiple switching frequencies, and AM interference prevention;

The TPA3116D2 advanced oscillator / PLL circuit uses multiple switching frequency options to suppress AM interference. When used with the master-slave mode option, multiple devices can also be synchronized. The TPA3116D2 device provides comprehensive protection against short circuit, overheating, overvoltage, under-voltage and DC faults. In the event of an overload condition, the device reports the fault condition to the processor, thereby avoiding its own damage.