I'm listening to one of the best balanced speaker systems I have ever owned.
I have owned AR4x, Dleuxe Advent, Dynaco A25 and still own KLH 6 and Polk Monitor 30 plus PSW 10 subwoofer systems. The system which gives me the most satisfaction is my Realistic Nova 8 speakers.
The Nova 8's are an interesting design, based on KLH 5 speakers, with drivers made in Japan. The catalog states they have a 12" acoustic suspension woofer and they have cabinets the size of AR 3's. I did recap one speaker and will do the other one this winter, although that speaker's caps seem fine.
My feeling is, after removing the woofer to replace the caps , that they really are more infinite baffle types as the woofers have more spring to them than true acoustic suspension speakers. If you remove an AR woofer it just flops around because the air spring gone. Well, in any case the Nova 8's don't suffer from foam rot and their sound while being driven by my Pioneer SX-780 is musical, powerful and clean without being TOO crisp. Absolutely great with the music I like, jazz club small orchestra with vocals,
I'm listening to Dinah Shore singing "It had to be you" on Pandora. The background piano is really great and her voice is RIGHT THERE. Cool!
Now it could be the room also, this system is in my study and I listen to it while I'm on the computer and the furnishings in this room are more plush than my listening room where the Polk system is. The extra damping might be helping, but the richness of the music is perfect to me. Right now Nat king Cole is singing "Mona Lisa", sorry, I HAVE to go now and just listen!
OK, song over. So, I have owned Bass Reflex, Acoustic Suspension, Infinite baffle and Aperiodic speaker systems. I think there is no stand out winner as far as type of system, it really depends on how that system is designed, built, and powered. And when you have a winner, you'll know it in your gut!