high end speakers? ... not sure what brands/model

Hi,
I have a new (6 mo old) set of Paradigm Studio-20 speakers in my living room.
They sound great to me. However, I hear so much about other top brands and models ... it is almost dizzying trying to keep them all straight!

Anyway, I was wondering how far I was from a top-level speaker experience.
Are my speakers pretty good or should I think about upgrades?

I listen to jazz, folk, classical, some rock, etc. I have a Naim Nait 5i amp.


I really enjoy quality sonics at modest output levels.

Thanks,
Rob