Hackable #media-#streaming #speaker does #HiFi with #tubes | linuxgizmos.com | * #bring the #heat back to the #Music ♪ ♫ thru #opensource | Linux and Open Source | Scoop.it
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.

Via Gonzalo San Gil, PhD.