Without prejudice to:
(a) The oxymoron embedded in the title now ignored for purposes of a reply herein; and,
(b) Before the bespoke merits of stepping up into the thin-air or oxygen-breather audio performance strata choices saddled with their unavoidable high-end strata eye-watering price-points BUT arguably better reflective of actual ‘end game” classification …..
My personal (emphasis-added); “arguably still affordable for the masses” end-game option is the REGA OSIRIS integrated amp.