Very interesting topic, Raul. Based on the responses here from you and Eldartford I'll be holding on to my 10t's for quite a while! These are good down to 28Hz, assuming a good supply of current that is. It's funny since this was always the most frequent complaint about these speakers, "the bass is too loose because of those 12 inch woofers". Now, I have spent a good deal of time and effort building DIY tube traps and absorbers to help treat the room responses and I also use the heavy Aerial stands. It seems to me that speaker designers sometimes shy away from really strong low frequencies because this makes them difficult to place in many rooms, with no control of treatments or flexibility as to placement, and get them to sound good quickly, as in the case of demonstrations. I mean, the first thing I have learned about sound and speaker placement is that you have to control the bass response if you want the mid and high frequencies to sound good and proper. I assume that this is very much true of systems that use strong SW's.
I know that many times when I go to concerts, even an all accoustic night with Godsmack, I do here more bass than what I would normally think I should here. Other times I here bands playing in small venues. I always come away thinking that the bass was too prevelant or the overall sound was too bright. But I have come to believe that this thinking on my part is due to my expectations from listening within my own specially treated and tuned environment. Yes, we do need to here these low frequencies when they are present to get the feel of a live performance.