I just noticed that the new Epik Empire has dual 15's and not just one like it used to. It seems like a very similar sub to the HSU ULS15, but with two drivers. I would seriously look into the Epik. They have had good reviews with past products and this looks like a very good sub for the price. But, there aren't any reviews out yet that I know of. So you should probably see if you audition it in your home (a 30 day return policy?) or if there is somehow you can listen to this sub first.