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Hackable media-streaming speaker does HiFi with tubes

Tubecore’s “Duo” wireless media-streaming speaker embeds a Raspberry Pi or Udoo SBC, and features Bluetooth and WiFi, plus a 48v Class A analog-tube preamp.

At $649, discounted to $479 in the current pre-order phase, the Duo costs more than typical $50 to $200 wireless speakers. However, it’s also a full media player that can stream HD video to a TV, and can also pound out high quality uncompressed audio from multiple sources. Products ordered today will ship in July.