I haven’t owned a single piece of gear for either home or car audio that doesn’t have a "loudness" feature (it is sometime cleverly renamed) ; and I never will. A true variable Fletcher-Munson is where its at. I like the fatness/punch and warmth it provides at low volumes.
And for what it’s worth - a lot of "purist" are not really purists anyway. How many are running Dirac, or Audyssey, or ARC ? Shouldn’t they be physical treating their room rather than using processing to flatten their response? Room correction processing is just the new/hip thing - so they are ok I guess.... I say use it all - what ever gets you to the experience that puts a grin on your face and that warm fuzzy feeling from head to toe when your system is singing just the way you like it......
And for what it’s worth - a lot of "purist" are not really purists anyway. How many are running Dirac, or Audyssey, or ARC ? Shouldn’t they be physical treating their room rather than using processing to flatten their response? Room correction processing is just the new/hip thing - so they are ok I guess.... I say use it all - what ever gets you to the experience that puts a grin on your face and that warm fuzzy feeling from head to toe when your system is singing just the way you like it......