Has anybody heard Opera Grand Callas 2014 edition?

Has anybody heard Opera Grand Callas 2014 edition?

http://www.operaloudspeakers.com/en/collezione/callas/6/grand-callas.html

Could anyone tell me, please, whether those speakers is more multi-genre than old series by Opera, or not yet?
On the one hand I'm quite keen on air, depth and atmospheric sounding of Opera, but on the other hand I can't stand it's selectivity in some music genres, especially rock and extreme hard, like metal, electronic, etc.
Has new Opera got rid of their's old limitations and flaws?
Which integrated amplifier about $3-6000 do you advise for those speakers to listen to music since classic till hard rock?

Thanks in advance!
Looking forward your answers!
(sorry for my bad English, it's not good enough)