APL 3910, Exemplar 3910, MF KW, Esoteric X-01?


I currently have Krell KPS-28c cd player ($8500). I am thinking about upgrading in the near future. Please help me decide which player – most important for me is “red book” format. The rest of my gears are Krell KCT pre-amp ($9000), Krell 400cx amp ($10500) and Wilson Audio Sophia ($11500). Following are possible players in random order:
Musical Fidelity KW SACD - $7,000.00
Krell CD/SACD – to be released soon (because of CAST) - $?
ESOTERIC X-01 SACD/CD - $13,00.00
APL 3910 - $5000.00
Exemplar 3910- $4000.00

Will I be down grading instead of upgrading with any of the above player?

Thanks in advance for your input
sd2005gt
My favorite player so far is the APL3910, but, thats out of your price range, so IMHO get a Modwright sony999, or 9000, or a Exemplar 2900. You will be amazed!!!!
Within your price range and 2 channel only, I would recommend also including the new Ayre 5x Universal player on your auditioning list. I tried it only briefly within an unfamiliar set up but seemed very good indeed though I still prefer my EMM gear. I am considering a 2nd system and planning on comparing the Ayre vs Esoteric vs dCs P8i (though the DCS is more exp than I really want to spend on in this system) when I get the time...unfortunately where I live the APL and other modded players are not available. Happy hunting!
Smilin, why would APL 3910 not be in price range? I thought that even now with all the latest upgrades, like the AKM DAC board, price is c.ca 6K, which is less than most CDs mentioned in the original post.
Guidocorona,
Thanks so much for your input. I will be looking at the APL 3910 more closely.
I would listen to both,at the same time,(take dealer demo's home to compare to each other, i have done that and bought the esoteric OX-1,and the reason is because,this thing byfar made the best soundstage i have heard,and detail up the wasu,The MF KW-CACD,was a warmer player,but it could not compete with the esoteric,also the kw sacd player i used,had some problems,it took forever to find the next song,and when you load a disc it took forever to track it,horible machine!!,the TRI VISTA wasn't bad but it lacks top end due to the tubes, it rolled off the top, just listen and compare and then buy..

Michael.