Wow! Just got them from Brian today. This wasn't even the reason I went to talk to him , it was an entirely different subject. Then I asked if it would make a difference, his smooth answer was everything makes a difference . I was sold cause B does not need to BS to make an xtra buck.
Those of you who have at least Auris , good for you. If not, go for the up grades . It's well worth it . It's like I got a new higher end amp. That's how much cleaner my highs are now.
Stan