I was considering a system somewhat like the asker mentioned (about 1/2 as much however) but backed way off after reading this site for probably 60-80 hours - lots of threads and lots of forums. So now I am down in the $8-12K range for for all new electronics (before speakers). The people on here are very serious, very honest and most of all very sensible - and so willing to be helpful!
One question to ahofer -- are dipole speakers ala Spatial Audio consider among the "good" ones?
Thanks
The spatial audio products are odd and exhibit some audiophilish type thinking, but I can see them sounding very atmospheric and very dynamic. I don't think the dome tweeter models are worth consideration. I'd definitely want to audition before purchase. If you are interested in Dipoles and want to do DIY, I'd seriously look at the Linkwitz LX521 kit:
https://www.audiosciencereview.com/...witz-lx521-4-new-build-and-impressions.21073/
These will illuminate your room like no other and would be my choice for a dipole over other offerings. Linkwitz was an audio icon and designed some of the most innovative speakers of our time, and the LX521 was his final work.
As to whether they are considered 'good' we can't say without detailed measurements, but there are some major flaws in their basic driver topology, mostly due to the immense directivity discontinuity between a 12" woofer and a 1" dome tweeter. Nothing can fix that.
With regards to electronics, I would be comfortable with the performance offered by the benchmark and okto gear, and as long as your streamer is just spitting out spdif or toslink or whatever you should be good. You could save a good bit of money if you wanted to of course, but the benchmark and okto stuff does look very nice.
I would really encourage someone investing this kind of money to audition speakers; and not just the typical boutiquey audiophile stuff. Listen to the Dutch + Dutch, the Genelecs, the ME Geithains, the Linkwitzes if you can. Listen to some horn setups, or to some Danley SH50S, or some Westlake monitors or whatever. Listen to some JBL M2s if dynamics are a priority for you. Listen to some Revels, maybe some electrostatics. Work backwards from there. Many of these speakers don't even require outboard amplifiers.