Initial results are nothing short of impressive! The clarity of low bass is equaled only by Vandersteen Quattro and 5A models I have heard several times in friend’s systems. These subs play very clear notes with proper texture and speed during rapid passages while blending well with the Thiels. I will continue to fine tune them but with the crossover on the subs set around 60-63 Hz, I can hear all the upper bass notes clearly without suckout, and with appropriate attack and decay. When the subterranean notes hit, they are not louder or softer than those higher in pitch but they are certainly felt as well as heard. Volume is set about half way. I can’t say enough about the clarity and texture of deep bass notes; they integrate very well in my set up. Stay tuned for more as I fine tune and they break in. One of the best bargains in modern subs. I am happy I went with the sealed version; they sacrifice maybe a couple of Hz (19 vs. 17 for ported) but the speed, timbre and smaller footprint are worth it. Plus, 45 day in home money back if you don’t like them, well, what’s not to like?