If KEF ls50 meta speakers are not "audiophile" then nothing is.
I own a pair + a pair of original ls50s. Also several other highly regarded audiophile favorites like Sonus Faber and Ohm. Every speaker is different but in terms of pure overall technical execution and sound, the KEF meta line in general is top of the heap at most any price point.
Does that mean everyone will like or prefer them? Absolutely not. What people like or think sounds best is a completely subjective determination so anything is possible there.
I would expect either of those amps to do quite well with ls50 metas.