That's a great deal on the PARC. I had the same issue and would have jumped on a PARC for $500. Bass traps helped but the boominess was still there. I ended up getting a McIntosh MQ 107 for $250, used the XTZ room analyzer pro, which quickly and easily identified a 22db spike at 38hz, so I attenuated that down with the MQ 107, and voila, no more boomy bass. Didn't mess with any other frequencies, and that McIntosh seems pretty darn transparent, as I've heard the PARC is as well. But after months of fighting with bass traps and speaker placement and all kinds of things to solve the problem, being able to do it for a few hundred bucks with one of these devices is a no brainer and will greatly help your sanity.
Glad the PARC worked well for you and like I said, it was my first choice but I couldn't find one, and certainly not in the range of $500. The McIntosh worked great, though. And if you haven't tried the XTZ room analyzer, I would recommend it.