Digione was reviewed here
https://www.avforums.co.za/index.php/topic,68134.0.html
https://darko.audio/2017/08/allos-digione-pulls-five-star-sound-quality-from-the-raspberry-pi/
https://www.youtube.com/watch?v=8Iey5yKd-p4
You can find info on the USBridge by searching online and see this review
https://www.youtube.com/watch?v=f0tMX8EdP4Y&t=181s
https://www.avforums.co.za/index.php/topic,68134.0.html
https://darko.audio/2017/08/allos-digione-pulls-five-star-sound-quality-from-the-raspberry-pi/
https://www.youtube.com/watch?v=8Iey5yKd-p4
You can find info on the USBridge by searching online and see this review
https://www.youtube.com/watch?v=f0tMX8EdP4Y&t=181s