Anecdotal "data:"
There's a Hypex NC502MP-based amp (from Buckeye Amps, to offer an unsolicited plug) driving my home system. It provides +/-270wpc unless you're wiling to accept SINAD greater than "barely measurable," in which case there's more. I'm driving it balanced from the pre, meaning I can fully volt the amp and potentially use all it can offer. It would shatter my R3's on what the amp can feed at 1%THD. It cost me $700, and if it has sonic faults I sure can't hear them.
A cheap Chinese Aiyima T9 with a tube front end and Class D amplification drives the LS50's on my desktop; it's a little warmer-sounding than the Hypex (I've A/B'd both speakers on both amps) but has all the power the Metas need in nearfield, I <3 the sound and have a little over $100 in the amp.
Mind, if I win the lottery I'm going to buy a Benchmark ABH2 and a pair of Maggies, but as long as I have normal human finances I can't justify Class A/B cost for the power when Class D is now this_good_for_this_cheap.
But this is an anecdote, and take it that way.
If you want something even better, Bruno Putzeys moved on from Hypex to found Purifi and his newest designs are that, somehow, statistically. Just be aware, certain "slap your brand on the board" resellers (especially ones with recognizable brand names) are greatly inflating the actual cost of offering boards from either source without adding operational value. Good stereo amplification isn't expensive any more because of easy availability of commercial board-based amps enabling Average Joe tinkerers to produce stuff 100% competitive with the "names."
Like my amp(s).
Do you think your Buckeye Hypex NC502MP can fully drive a LRS+ pair? That’s my dream speaker setup, but apparently one needs a McIntosh MA6700 to drive them? Not sure what class that amplifier is, but it costs like $6k.