So I have been playing around with these the past few days and so far, I have enjoyed them isobaric in the 3 cube enclosure the best. Sealed, I was not pleased with the frequency response and they sounded pretty dead. It works out decently with the single sub in the 3 cube enclosure but any smaller and I wouldn't be very happy with it. It didn't like 1.5 cubes @ 30hz very much. I'm going to build a 7 cube enclosure tuned to 23hz for these. I think it will work out well for them and should be pretty nice for a home theater setup that doesn't need a ton of output.
I actually enjoy the single 8 for moderate volume listening. When I need extra output, I just put my av12 on instead. There isn't a ton of output from these guys but their frequency response in this enclosure is not bad at all. Not the best sounding driver but not bad at all. Well worth the money, even if one did leave the warehouse jacked.