I have a smallish room (12x14) that's also a bit odd shaped. My biggest issue has been with REAR ported speakers. I owned the Kef LS50 speakers for about a year. I tried to like them! Wanted to like them and in fact liked some aspects (nice sweet highs!) - But could never tame that low-end port-itis! It drove me crazy trying to mitigate the issue! I'm also a drummer of over 50 years, so the LS50's never seemed to give me the kind of energy that I heard playing live / not real!
I had a pair of Polk Lsi9's several years back AND finally found another pair to give them another go in my room. This was a great move as I like them so much better - true they are rear ported, but they have the power port system that mitigates much of the issue. Note: they are very difficult to find used as owners seldom want to sell them.
Polk also has the beautiful LSiM 703 largish bookshelves that my friend has and they are killer! Rear port issues may occur in a small room with those so keep that in mind.
Another speaker: sounds excellent are B&W CDM 1SE - good luck! dumbe
I had a pair of Polk Lsi9's several years back AND finally found another pair to give them another go in my room. This was a great move as I like them so much better - true they are rear ported, but they have the power port system that mitigates much of the issue. Note: they are very difficult to find used as owners seldom want to sell them.
Polk also has the beautiful LSiM 703 largish bookshelves that my friend has and they are killer! Rear port issues may occur in a small room with those so keep that in mind.
Another speaker: sounds excellent are B&W CDM 1SE - good luck! dumbe