Best Holographic Speakers ~$7k per pair

And holographic in a 2 channel system is an oxymoron.

Well that’s just simply not true as you’ve obviously already found — some speakers absolutely produce an effortless, expansive 3D or “holographic” soundstage better than others.  Some I’ve found in your price range new that excel at this are the Joseph Audio Profile, ProAc D20, Totem Tribe or Forest, and Usher Dancer Mini-Two.  If you’re open to used I’d add the Vandersteen Treo CT as well.  I’d think you’d be able to demo several of these in the LA area and highly encourage you to go hear as many of them as possible.  Hope this helps, and best of luck. 

If you want holographic, there's none better than PureAudioProject. Connect them to a decent power tube amp (I'm using MasterSound Compact 845 with Trio15Classic)

@julesg13th I didn’t mean bad with my comment and I hope you take time to watch the video. But yes I’d say go demo the speakers or if you can get the speakers in your space even for a fee to demo, that is the ideal thing.

Also get the speakers in your space before doing any treatment. Treatment needs to be targeted and to be targeted a speaker must couple with your room first

Regardless I'm happy you're going about this the correct way making sure you getting the room to fit the speaker as those the biggest factors as to how you're hearing them.

Amp, DAC and every other tinkering that will be done won't come close to the effect of good speaker/room coupling and placement correctness

@kofibaffour thank you for your input. I listened to the same songs on the Cornwall's and the 502SP's and the 502SP's had a way better stereophonic balloon.