2.0 Channel Class D Hi‑Fi Amplifier TPA3116D2 50Wx2 Bluetooth V5.4 — RCA/AUX/U‑Disk, Bass/Mid/Treble Controls

Zinc alloy shell offers a high-end, corrosion-resistant finish while housing a high-fidelity Hi‑Fi 2.0 dual-channel amplifier that delivers 50Wx2 for clear, spacious sound and an immersive listening experience. The amplifier is built around a high-performance class D TPA3116D2 chip, featuring up to 1.2MHZ modulation frequency to ensure precise signal transmission. Wireless connectivity uses a V5.4 BT chip to stabilize the link with a usable range of up to 15 meters, and the circuit design includes two NR5532 dual operational amplifiers for refined audio processing. Safety and reliability are provided by quadruple protection: over-voltage, under-voltage, overheating, and a DC detection circuit. Flexible input options include 3 input modes — BT, U disk, and AUX — plus an RCA input port to separate audio and video transmission. Physical controls allow independent master volume plus dedicated treble, midrange, and bass adjustment knobs for fine-tuning your sound.