The Acurus is both hardware and software upgradeable I don’t think that the lyngdorf is and neither is McIntosh I don’t feel like having to buy new equipment every few years
It sounds like you are putting upgrade features over sound quality. If that's the direction you want to go, that's fine. I would say the McIntosh MX-160 is still going to out-perform the newest Lyngdorf as far as sound quality goes.