Never heard any of the Dayton stuff, so can't give any input on those, but I have had my 12" D6 sub in a .86 cubed sealed box and it blended in great with my front stage, didn't get real low though, I'm guessing that was more the boxes fault than anything though. I didn't really get too much time with it sealed, so I'm guessing I could have gotten it to sound much better than I did. These also work well in small ported enclosures if you ever need more thump. Good luck.