I was referring specifically to the sweet spot when I made those comments. Its tricky to put into words the difference dual subs has made...I don't want to say it has more impact now because a single ep500 doesn't lack impact, but whatever the ep500 was doing before is now twice as good and twice as smooth.
As for the amps, I got my lpa-1 just yesterday and it's absolutely blown me away. The things that have improved most are the things I never even considered, such as surround effects, which sound clearer and cleaner than they ever have. Although Dialog sounds bright, it doesn't ever get quite as irritating as it did previously but I'm not expecting that to be completely fixed until my new tweeters get here. Overall, I didn't anticipate this much of a difference, while certaintly not night and day, it is atleast 15-20% better than before. Now all I need is acoustical treatment.
