yyzsantabarbara
I have found that the best approach to a Thiel loudspeaker, allow your ears to guide you. Specs are helpful to a degree. Specs are not the only aural factor up for consideration, IMO. I believe that we can all agree on an amp that doubles down in power rating from 8 to 4 ohms. The rest is a matter of taste. 2020 has been a banner year for Integrated amp(s).
Until last year, I would have never given the notion, a second thought.
My AYRE integrated is a killer and musical as separates for more money.
Happy Listening!