I listened to the Sopra 3’s at a dealer’s showroom and liked the sound very much. I think, the 3’s will give you more bass response, but it may be too much for your room and limit placement within the room. The tweeters were kinda bright for a while but mellowed out nicely with more hours on them.
I ended up buying though the Sopra 2’s and I am very happy with that decision. Placement of the smaller Sopra 2’s was easier and important for soundstage.
Either one is excellent though.
BTW, I also own (4) JL F-113 subs.
ozzy