X400HS 2.1 Channel Bluetooth 5.0 Amplifier Board, TPA3223 Chip 200W+200W+400W Output, 12-42V DC with 6 Knob Controls, for DIY Subwoofer/Speaker/Home Theater Audio System

**Massive 800W Peak Power & Dual TPA3223 Chips** Experience theater-like sound with dual Texas Instruments TPA3223 amplifier chips. Delivering a robust 200W + 200W + 400W (Left/Right/Subwoofer) output, this board supports a wide 12-42V DC input. Higher voltage provides greater, cleaner power to drive demanding speaker setups. **6-Knob Studio-Grade Control & Full-Range Output** Take full command of your audio with six independent knobs: Sub Freq, Sub Vol, L/R Treble, L/R Bass, L/R Vol, and Master Vol. Precisely balance your subwoofer and stereo channels. The left/right channels feature full-range, unattenuated output and are compatible with full-range speakers, 2-way speakers, or 3-way speakers; full-range, 2-way, or 3-way speakers are supported for versatile setups. **Triple Inputs & Physical Mode Switch** Enjoy versatile connectivity with Bluetooth 5.0 (stable connection), 3.5 mm AUX, and USB playback supporting MP3, WAV, FLAC, and APE files up to 32GB FAT32. The dedicated physical switch enables instant, hassle-free switching between Bluetooth, AUX, and USB modes. **Comprehensive Protection & DIY Ready** Featuring protection against short-circuit, over-current, over-temperature, and reverse polarity, this board is built for reliability and safety. Includes a pre-soldered IPEX antenna and uses a standard 5.5 x 2.5 mm DC jack. Its compact design is suitable for DIY audio projects, custom enclosures, or upgrading home theater systems. **Smart Features & Package Note** Features one-touch control via the multifunction knob for play/pause, track skipping, and reset functions.

The board includes power-on memory to recall your last used mode. The power supply and audio cables are not included, allowing you to choose components that match your specific power and quality needs