Vienna Acouctics Beethoven Concert Grand vs. Avalon ascendant mk2

I decided to sell my beethovens to upgrade to some ’big boy speakers 5-6 years ago... I went thru several full range floor standing speakers even a couple class a and first chance I got to buy back a pair I did. I would put the beethovens up against any speaker up to 3 times the price.in fact I prefer the way they sound to the bigger strauss and mahler.

...in case that I keep vienna bbg, I guess there's also space for sound improvement if I change my present speaker cables - Kimber 8TC with something better, maybe Kimber monocle XL or some Cardas or...?

Thx steve59 for the post...I'm getting closer to deciding not to sell my speakers (in fact I was never really 100% sure I wanted to sell them).
In that case the question is how to get the maximum out of them, better speaker cables, better amp than thor,...??