Douk Audio Mini Bluetooth 5.0 Vacuum Tube Amplifier Stereo Receiver Home Audio Amp 50W+50W

Features With standard RCA and wireless Bluetooth inputs: adopting CSR64215 Bluetooth chip support APTX / APTX-LL transmission, the streaming range up to 39ft(12m). With input selector, perfectly compatible with iPod, Phone, MP3 players, TV, CD players or Streaming Media players etc. And adding a 3.5mm headphone output suitable for 16-64 ohm headphones. 50W+50W output(4 ohms, 20Hz-20KHz, 0.04% THD): adopting classical TPA3116 chip, with built-in speakers protection circuit, easily to drive outdoor/ bookshelf/ computer/ desktop /ceiling passive speakers, no pop noise when connecting Bluetooth or output large power. Vacuum tube design with tone control: adopting 6J4 tube to filter out digital sound and enjoy soft, warm and sweet music. With treble and bass control to adjust more delicate sound, and 6J4 can be directly replaced by 6K4, 6J1, GE5654, 6AK5, 6ж1П, 6BC5, 403A/B, EF40, EF95 and so on, adding much fun and higher playability. Mini size with delicate appearance: black