Feature:1. Advanced modulation system configuration to reduce the number of components2. Integrated self protection circuit, including overvoltage, undervoltage, overheating, DC detection and short circuit protection, heat resistant package3. The power amplifier chip has the characteristics of more than 90% power efficiency and low spatial loss characteristics4. With Surface Mount Capacitor, European 3P wiring terminal, large heat sink and convective heat dissipation5. Suitable for car computer speaker DIY home theater sound system , durable, can be used for a long time, bring a lot of convenienceSpecification:Item Type: Amplifier BoardMaterial: PCBPurpose: Audio AmplifierModel: For XHM543Chip Model: TPA3116d2Working Voltage: DC12V to 24VRated Current: 4.2A (Maximum)Output Power: 2 x 120W Maximum, DC12V 2 x 50W, DC24V 2 x 120WSignal to Noise Ratio: 100dbChannel: Dual Channel Stereo.Package List:1 x Module1 x CableNote:Do not use in voltage and current range.The maximum power is 100W, please try not to adjust to 100W.