JL Audio e112 or HSU ULS MK2

Dan, please re-read my above post. I did NOT suggest you get a single 18" sub, I said if you're going to have a single sub, the new 18" Rythmik would be killer. I'm going to stop posting, my words are too frequently misunderstood and/or misquoted.

@yakbob
Could you go into a little more detail about sound, placement, room size, and how you connect your ULS-15's in your system?

I cannot even begin to describe how much of an unfair comparison that is.  The E112 is a dramatically better sub.   I owned one, and then a pair, of ULS15's.  I loved them, but didn't know what I was missing.  Not even close in performance, especially for music. 

@bdp24: you said:
'Rythmik 18" (sealed or ported) would be killer. Massive output, with the same sound quality as the 12" and 15" models.'
sounds to me like a recommendation.....You can stop posting if you want ;-)

@contuzzi:
Can you please elaborate a bit more than just saying e112 is dramatically better? Data from data-bass is not in favor of e-112 when it is compared to either Rythmik or HSU.