I've been auditioning the Audio Aero Capitole, not yours from Audio Federation out of Boulder. Neli, one of the owners, who I have been talking to about it is very knowledgeable and could probably help you. Try her, worst thing is you know no more. Phone number is 303-546-6503. She does sell the prestige as well and I found her very helpful in tube selection, power cord choices et.al Good luck.
Michael
Michael