OK. Sounds like you'll be in the market for a new pre/pro, plus the $900.00 entry price for all-out Dirac.I was sending my missives while at the gym this morning before work, so was overly terse.
If you prefer rolling your own room correction to running any of these automated tools, that’s hobbyist choice. But having glanced at REW and mini-dsp and done a quick search on options for outboard room correction options, I came away uninterested in trying to go that route.
And what’s exciting about ART is it really looks like next-gen processing. Audyssey and ARC and REW, I believe, are all basically the same thing: speaker distance adjustment and speaker frequency correction. The differences I’m guessing are about how many sample points, how many computed points, and magic sauce in combining multiple measurement locations. ART adds something new: using active audio output from speakers to further improve perceived room echo and delay effects. Surround speakers actively play to support correction from LCR, say.
Does it work well? Will it work in my theater? Is it useable by an enthusiast or is a pro installer needed? Is it worth the money compared to current systems? I don’t know. Info is sparse. I’ve read one review. But to me, who wants to upgrade room correction in a significant way beyond Audyssey, ART is exciting and very promising.
Not saying you shouldn't. Just saying "I wouldn't"