Enhance your audio experience with this high-quality 2.1 channel Audio Amplifier Board, designed for superior sound performance and versatile connectivity. Equipped with dual audio input methods, including AUX and Bluetooth 5.0, it delivers efficient wireless transmission with an extended range of up to 10 meters (32.8 feet), ensuring seamless and stable audio streaming. Powered by the advanced TPA3116D2 chip, this amplifier board produces a maximum output power of 2×50W for left and right channels plus 100W for the subwoofer, providing rich, clear sound with powerful bass. Key Features: · Dual Audio Input Options: Supports both AUX and Bluetooth 5.0 inputs, offering flexible connectivity for various audio sources with enhanced transmission efficiency and reduced interference. · Powerful 2.1 Channel Output: Delivers up to 50W per stereo channel and 100W to the subwoofer, perfect for home theater systems, shop solicitation, and speaker setups requiring dynamic sound. · Superior Signal Reception: Comes with an antenna and antenna base to improve signal strength, boost transmission efficiency, and provide strong anti-interference capabilities for uninterrupted audio. · Comprehensive Protection Mechanisms: Built-in short circuit, overcurrent, overheating, overvoltage, undervoltage, and DC detection protections safeguard the amplifier board from damage during overload or fault conditions, ensuring long-term reliability. · Robust and Safe Connections: Features a copper DC connector combined with a shed-type terminal capable of withstanding high current without heating or wire damage, enhancing durability and safety. · Adjustable Sound Controls: Equipped with bass, treble, subwoofer frequency, and volume controls, allowing you to easily customize audio output to suit your listening preferences. · Wide Compatibility: Compatible with speakers rated 20-100W and 4-8Ω impedance, adaptable to a power supply voltage of 12-24V/5A or higher (note: do not connect to 24V battery packs). Specifications: · Item Type: Audio Amplifier Board · Material: PCB · Model: ZK-TB21 · Chip: TPA3116D2 · Bluetooth Version: 5.0 (Unobstructed Range: 10m / 32.8ft) · Audio Input: AUX + Bluetooth · Number of Channels: 2.1 Channels · Input Sensitivity: 500mV · Adapted Power Supply Voltage: 12-24V/5A or more (Do not connect 24V battery pack) · Speaker Compatibility: 20-100W, 4-8Ω · Output Power: Max 50W (Left and Right Channels), Max 100W (Subwoofer) · Protection Mechanism: Overvoltage, Undervoltage, Overheating, DC Detection, Short Circuit Protection Package Includes: · 1 x Audio Amplifier Board This versatile Audio Amplifier Board combines advanced technology with durable construction to deliver powerful, high-fidelity sound for a variety of applications. Whether for home theater, retail environments, or custom speaker projects, it offers reliable performance, flexible connectivity, and essential protection features to enhance your audio setup.