ZK-HT21 Bluetooth Amplifier Board 2.1 Channel Audio Amp for 2.1 Speaker System
Product Description
Features: 1. High‑Power 2.1 Channel Output: Delivers 160W X 2 Stereo Channels Plus 220W Subwoofer Output, Built For Rich Full‑Range Audio Performance. This ZK‑HT21 Amplifier Board Supports Separate Treble, Bass And Subwoofer Frequency Adjustment, Brings Clear Vocals, Crisp Highs And Punchy Deep Bass For Home Speaker, DIY Sound System And Small Theater Build Projects. 2. Multi‑Mode Audio Input Options: Comes With Bluetooth 5.0 Wireless Connection, USB Playback And Aux Wired Input Interfaces. Stable Bluetooth Signal Connects With Phones, Tablets And Laptops Easily, USB Port Enables Direct Music Play From U‑Disk, Aux Input Works For Wired Audio Sources, Meets Different Playback Demands For Your DIY Audio Setup. 3. Precise Independent Tone Control: Equipped With Five Physical Knobs For Master Volume, Treble, Bass, Subwoofer Volume And Subwoofer Frequency. Users Can Fine‑Tune Sound Effects According To Speaker Characteristics And Personal Preferences, Separate Subwoofer Cutoff Adjustment Helps You Get Optimized Low‑Frequency Performance For Your 2.1 Channel Speaker System. 4. Effective Heat Dissipation Structure: Integrated Built‑In Cooling Fan Prevents Overheating During Long‑Time High‑Load Working. Optimized Circuit Board Layout Enhances Thermal Conductivity, Protects Internal Power Chips, Reduces Distortion Risk, Guarantees Stable Continuous Operation For Home Diy Audio, Desktop Sound And Small‑Scale Entertainment Application Scenarios. 5. Complete DIY Installation Kit: Package Includes Amplifier Main Board, Matching Screwdriver And Terminal Connector, Saves Extra Accessory Shopping Trouble. Wide DC 15‑36V Power Input Range, Simple Wiring Design Fits Audio Hobbyists And Makers. Perfect For Building Home Speakers, Desktop Audio Systems, Small Project Sound Equipment. Specifications: Type: Amplifier Board Condition: 100% New Material: Plastic Model: ZK-HT21 Power Amplifier Chip: TDA7498E Audio lnput: Bluetooth, USB, AUX Bluetooth Version: 5.0 (Line- Of- Sight, 15 Metres) Output Power: 160Wx2+ 220W Compatible Power Supply: DC 15–36V (Under-Voltage Protection Below 9V; Also Supports 12V Power Supply) Compatible Speakers: 30–200W, 4–8Ω Number Of Channels: 2.1-Channel (Left Channel + Right Channel + Subwoofer) Output Power: Left/Right Channels ≤160W, Subwoofer ≤220W Packaging Includes: 1* Amplifier Board 1* Power Terminal 1* Screwdriver
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