There really is no different between speakers for music and thos
'e for HT. But, some sound better on the latter then the former.
If a speaker sounds good on plain vanilla stereo, then they will sound great for HT. The opposite is not always true. HT depends on boom, sizzle and sound effects and that doesn't require great speakers.
Since music is important to you, always, I repeat, ALWAYS bring CD's you're familiar with and audition using only the front two speakers, with no subwoofer.
That way, you will get the true nature of the speakers.
As to whether they for you, only you can tell by listening to them.
Once that's done, you can augment the missing low end with a good woofer. The more you can throw at this, the better off you'll be. Taint no big deal.
as for immersion, that requires at least five speakers.
All that being said, you can't fool the laws of physics. The job of speakers is to move air and the bigger the speaker, the more air it can move. don't expect small speakers to play loud, particularly in a large room.
But, if you mainly listen to two channel music, or simply want a "bigger" sound, you can get larger right and left mains and a center speaker that will fit in well with them. Most manufacturers offer a center speaker to match the larger ones in their line.
Well, that's it for me. Good luck and happy listening.