[PASSFREAK]

Originally Posted by jameslrock

I will defer to Ivan but my thinking is that I would strongly consider a gently pre-owned K-01 first, then a K-03X second. That is until I saw the deal Ivan has on a K-01X in the marketplace

https://www.audioaficionado.org/showthread.php?t=39531

I listen both very well and, if you can, buy a K-03X.
For me the K-03X is slightly better than K-01, probably you make a very good deal with Ivan for a new one