ZKST21 2.1 Channel Stereo Amplifier Board Powerful, adaptable, and built for reliability, the ZKST21 sound amplifier board delivers exceptional audio performance for both home and projectbased applications. Designed with advanced features and safety protections, it is ideal for anyone seeking quality, power sound with dependable operation. Key Features and Benefits: Wide Speaker Compatibility: Supports left and right stereo channels (3–8 ohms, up to 100W each) and a dedicated subwoofer channel (2–8 ohms, up to 200W) to accommodate a range of speaker setups. for custom audio systems and upgrades. Strong Safety Protections: Builtin safeguards against undervoltage, reverse polarity, overheating, overcurrent, and short circuits help extend product life and ensure safe operation under demanding conditions. Advanced Wireless Technology: Powered by a performance 5.1 chip, delivering stable wireless audio transmission with an extended range of up to 15 meters, allowing flexible placement without signal dropouts. Power Output: Produces up to 100W per stereo channel and 200W for the subwoofer, creating a powerful and immersive listening experience suitable for both music and home theater setups. Practical Applications: 1. Home Audio Systems: Enhance your living room or home theater with quality stereo sound and deep bass from a separate subwoofer channel. 2. DIY Audio Projects: Ideal for building custom speaker systems for or professional use, offering both versatility and strong performance in a compact form. 3. Workshop or Studio Use: for powering monitoring speakers or background music systems in creative or work environments. Specifications: Model: ZKST21 Channels: 2.1 (Stereo left/right, subwoofer) Supported Impedance: Stereo 3–8 ohms, subwoofer 2–8 ohms Power Output: 100W per stereo channel, 200W subwoofer channel Wireless Range: Up to 15 meters Protection Features: Undervoltage, reverse polarity, over temperature, over current, short circuit The ZKST21 amplifier board brings together output power, flexible compatibility, and advanced safety for a dependable audio solution that meets the needs of music lovers, home theater enthusiasts, and DIY builders alike.