Upgrade order? Preamp, amp, speakers

I think that the CDP is fine.
I never cared much for B&W speakers
Pre-amp can have a profound effect on the sound.
Speakers are the most "fun" since they are big and will have vastly different sonic signatures.

I own the K1x, and it is maybe the best piece of gear I've bought. I can highly reccomend it.

I also have the Parasound JC-1 amps and am using Von Schweikert VR4SRs. This is a nice match, I like it a lot.

Have to agree with Swampwalker's pithy statements.

My own notion is that, all else being equal, it will be more fun to listen to the new preamp through the old speakers than vice versa, so I'd do the preamp first.

Probably just my opinion, but I would start with the speakers. I have heard some pretty great setups that had the parasound in the pre positon...Let me tell you, it sounded pretty good when it was feeding halcro monos. Best of luck!

I would suggest starting out with a tubed preamp. You have a nice cd player and pretty respectable speakers, so I would suggest upgrading the electronics. Since a preamp changes the system sound more than the amp in my experience I would suggest a good neutral tube preamp, like a Herron VTSP-1A, a BAT VK5i, or a CAT SL-1 MkII or MKIII. Just a few ideas, but more than anything have fun and buy used. That will save you from expensive mistakes. Happy listening!