6ks versus legacy 5k2s is no competition, the 6ks are waaaaaaaaay better.

I've never been able to compare them against SEs, but the cost differential weighs heavily in favour of the 6ks at that point, and I wouldn't make the swap until I knew what upgrade path M was actually going to offer to get MQA into them.

Sooloos, Roon, G series (with LPS upgrade), 800 series (with LPS upgrade), HD621, AC200, Prime and PS, DSPs old and new.

Purdeys, Moke, Leica, 'Blad. Only the best.