Find the new model of Tube Technology if you can.
I just went to the Audio Aero website to check and confirm something:
The Audio Aero Prima DAC also uses the patented STARS system which the Camelot does not. That elevates it above other Anagram-based units. You can check that out at the website, www.audioaero.com
The only to REALLY tell is to compare them, of course.