you can get excellent bass with no tradeoffs in the $1K to $2K range.
I'm still not completely clear on the difference between SVS's PB12-NSD (which is below your price point as "no tradeoff subs" v. the EP500.
I'm comfortable spending the extra money for the EP500, but I just want to know what I'm getting for my extra $$.
Also, anyone running a system with an EP500 and a EP600 or 800? I read a post that some said the Ep500 was better at the upper end of bass and the 600 and 800 were better in the lower end of the bass spectrum. If this is true... would I benefit from running both?