First, thanks for the link.My point always was that DIRAC could make more difference in the final result than a lousy THD could. Please see this link, its subjective, yes, but it´s a real world situation. A cheap component with lousy measurement against a monster audiophile component:
http://matrixhifi.com/ENG_contenedor_ppec.htm
Second, you have to get out of the mindset that "expensive" equals quality. The YBA 2 was tested by Stereophile and is generally a lousy amplifier with large amounts of distortion (though that didn't stop it from getting a 'Highly Recommended' at the conclusion of the review).
https://www.stereophile.com/solidpoweramps/420/index.html
I've contacted an engineer and I'm pricing how much it would cost to update this Sherwood RD-7503 7 channel receiver with Dirac. It shouldn't matter how bad it tested, because Dirac will fix all the problems. I can get hundreds of these units for about $1 each, so if Dirac implementation can be done for under $500 w/licensing costs, I can sell these for 100% markup and make a lot of money selling them. If I need investors, I'll post, but can I count on your order?
https://www.soundandvision.com/content/sherwood-rd-7503-av-receiver-ht-labs-measures