About to audition Vienna Acoustics Beethoven Grand Reference - advice?

Hi,
I have been listening to Aerial Acoustics 7Bs ( 86 dB sensitivity) for nearly 20 years.  About to audition the VA Beethoven Grand Reference.  90 dB sensitivity.  $12k.  I have a Balanced Audio Technology VK75SE - 75 watts.  700 Joules of power.
Question #1: I always felt the Aerials were under powered.  I'm going to hear the VA BGR with a Pass amp -- not tubes.  Does anyone have any LISTENING experience with this new speaker using 75 watts of tube power?
Question #2: Suggestions for speakers in the $8-12K range ... good for full orchestra (think Mahler 5th), jazz (HHancock, Miles, FHubbard etc), female vocals and 70s rock (Zep, AC/DC, Neil, Yes, Genesis).  Aesthetics are VERY important.  And space is an issue, so no large panels.
Thanks.

Joe