Got it. Like I mentioned, I am sure how it looks like your enthusiasm for these Martin Logan’s comes of the blue like a paid influencer might do it - but this is a lot of context. Makes much more sense why you're seemingly hyperfocused on the speakers...
ASR tends to have the group-think of "you should have a neutral speaker" but the success of B&W and even these Martin Logan suggest that there are those who like to deviate a bit.
The wildcard is that you know how Tom is supposed to sound. How the heck is a lightsaber supposed to sound? That led me down the path of getting Meyer Sound. We know that the JBL's that
@Andysu talks about is how the fast majority of movies in the 80's, 90's, 00's, and probably 10's are intended. Meyer Sound has taken over JBL's position as the cinema standard in the '10 to '20s, probably due to the loss of some of the top JBL engineering and manufacturing. Meyer Sound is what Skywalker Sound uses exclusively, and it's not all action flicks
www.skysound.com
not to mention that in 2020, the Directors Guild of America changed their reference theater from JBL Professional over to Meyer Sound.
The Directors Guild of America recently completed a total renovation of its flagship motion picture exhibition space at the prestigious DGA Theater in Los Angeles. Guided by a Guild committee of six leading filmmakers, the renewal project has moved the 600-seat theater to the forefront of cinema...
meyersound.com
So going back to your question. The PowerSoundAudio's just have satin or matte black, so it's not a good choice for you. SVS is fine for what you're looking at.
What you should do is to buy the Onkyo TX-RZ70 or RZ50 from a place with an in-home trial. Amazon has an open box one for $1800 which is a great deal but if you plan to get your speakers from Best Buy anyway, they have the RZ70 for $2300 and a reasonable return policy for you to try. The Onkyo's ship with Dirac Live included whereas the Denon's require you to buy afterwards.
That said, take a look at Denon's manual
manuals.denon.com
Dirac will show your measurements. You can choose all sorts of curves, but you'll likely go +8 to 10 dB on the bass for your preference. Usually the Harman curve is downsloping, but given your preference for the Martin Logan's, you may like the high frequencies to be flat at the listening position.
View attachment 425654
The argument is that having JUST listened to the KEF and Martin Logan, you SHOULD find that the Studio 60's, if there weren't broken, will sound just as good as what you heard at BestBuy once you tweaked the DSP. That's because your on and off axis on the Paradigm should be pretty respectable.
If you know that, then you can pick speakers that are neutral and modify them as opposed to the Martin Logans and tame them down *if* there are cheaper or more attractive speakers. Even if you go with the Martin Logans, you'll for sure want Dirac.
The only thing better than Dirac is Trinnov, but if your Studio 60's are falling apart, then I would retract my recommendations. Audyssey XT32 is better than the Audyssey in your current version, but based upon what you've said, I think you'll really enjoy the full range correction and fine tuning capable with Dirac.
The only thing that's more authentic in terms of what stuff should sound like are the Meyer Sound Amie's which super pricey (again, you can get discounts if you ask) but is exactly the speakers used at places like Skywalker Sound. They're just 6.5" 2-way bookshelves which may or may not work better for your desired application.
White paper here
I don't know if the Onkyo includes a Dirac mic or if you need to buy a calibration one. You can get a UMIK-1 but the cheaper Bluesound dirac calibration kit is probably decent for an initial assessment.