I have owned the K-03XD for a year now, and i have the itch to upgrade to the K-01XD.
My dealer has offered to take my k-03xd in on trade, along with an extra 9K usd/plus taxes.
Don't have the chance to hear the K-01xd, so would like to know if anyone has head both and could give a good comparison.
One other thing i did notice that my K-03xd does not sound as good with my c-03x pre as my old K-01x did. The sound stage is a bit smaller and less clear. Voices sound a bit back. Almost a bit muddied. To test this i brought my C-03x over
to a friends and it did the same thing, to their system. I didn't notice this with the K-01x. Soundstage was huge and incredibly detailed but it had a sibilance to it, that i tried to tame. So i decided to borrow a Bryston Br-20 preamp from my dealer.
The soundstage opened up, the voices were more forward, and it was less muddied. It lacked the smoothness and micro detail that the c-03x gave. So i am also wondering if there is a better preamp choice for the k-03/01xd players.
On the esoteric side the only other option in the grandioso C1, which is way beyond what i could spend. All other esoteric preamps have been discontinued. No real options to test drive any preamps where i live.