ZK-AS21 TPA3255 Bluetooth 5.1 Power Amplifier Board HiFi 2.1 Channel
220Wx2+350W Digital Audio Receiver AMP Board with Treble and Bass Control for DIY SpeakersUSD $36.99
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- 【HI-FI & Stereo】High-quality 2.1-channel 220W+220W+350W Bluetooth 5.1 amplifier board, with multiple audio input methods such as AUX, Bluetooth, U disk, and USB sound card, allowing you to enjoy the fun of music anytime, anywhere.
- 【Function upgrade】Supports APP control, and can modify Bluetooth name and password settings. The 5.1 Bluetooth version has settings such as adjustable volume, sound on/off, and timed shutdown. Comes with 10 natural sleep songs and up to 1023 sound combinations. Not only can you display the playlist of the U disk, you can also shake the phone to change songs or use the dial/mode key to switch songs.
- 【Professional chip】Using 2 Texas Instruments TPA3255 chips, it is a high-performance Class D amplifier with Class D efficiency, which can bring true high-end sound quality. The device adopts advanced integrated feedback design and proprietary high-speed gate driver error correction technology. This technology enables the device to maintain ultra-low distortion across the entire audio band while providing high-definition sound quality.
- 【Super Compatibility】 5.1 Bluetooth version, with higher transmission efficiency, more stability and longer transmission distance. In open space, the wireless range can reach 15 meters (49 feet). It can be widely used in various devices such as tablets, PCs, TVs, smartphones, laptops, etc.
- 【Safety Protection】 The amplifier board has short circuit, overcurrent, overheating and anti-static protection to prevent complete failure. When overloaded, the device will report the fault to the processor to protect itself from damage.
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