Vandersteen Model 7: has anyone heard?

This is an update from my previous post on the Vandersteen Model 7 speaker
system. I am now at 850 hours and I can say without any doubt that the speaker continues to improve. I think this is remarkable. I have talked with Richard Vandersteen about this and he told me that he has experienced the same
phenomenon with his own personal pair. And this after three years! The chages are not obvious like when you are breaking in the speaker, but are subtle and act as a sort of audio fix every few days. Properly set up (per manual) and driven by
quality electronics (I have Aesthetix all balanced), this speaker can compete with any speaker out there.

Also, typical of Vandersteen's approach to speaker maufacturing, there will be
a new high pass filter available soon. This will replace the current model. The word is that this will take the Model 7 to an even high performance level and
will be a dramatic improvement similar to going from the Model 5a to the 7.
If there is way to improve a current production model you can bet that Vandersteen will find it and do it.

Encouraging to read that the Vandersteens do well with Classical music. I was worried that this would be their Achille's heel. I heard them with classical briefly at the last RMAF and wasn't as impressed as I was the year before (with jazz).

How does the Model 7 handle Rock, Jazz and Blues music?

Had Black lable society rocken with an NAD amp while the
Sevans were breaking in like a live event.
Alice in chains bass line was insane the who Live at leads alblum Happy Jack will make you happy when you hear Kieth Moon's drum work.
Muddy Watters the Folk singer Big legged womans and Good morning little school girl never heard better.
yes I am a Vandy dealer but also like this music myself
What I hear is ((less speaker and more music)).
Johnnyr

Don't the 7s really need solid state amps? Vs the 5A they have a lower impedence and are a bit less efficient.

What have people experienced?
Thanks, Terry