Best one-chasis CD/SACD player under $15 000?

I don't want any artificial sweetening, tubes, colorationes etc. Just pure signal

The EMM Labs CDSA-SE has a lifelike sounding software inside. Getting one 2. Hand is a real Deal.

Krell Evolution is a great sounding CD and SACD player though I did find it sounded its best in an all-CAST system; 2nd up was XLR outputs. Esoteric K-03 or if you can find it, K-01 on the used/demo unit market both come in close to your price range. A unit I've only heard once, the Ayre C-5xe MP is also something you should seek out and listen to (IMHO) though for me, the Esoteric K-01 unit would be the ultimate 1-box player. You mention Classe above; the Classe Omega SACD player still holds it own after all these years though you'd have to find it on the used market I believe. Jfrech mentioned dCS puccini; log a 2nd vote for that player!

Try Playback Design and EMM Labs.

I've got an Esoteric K01 and would highly recommend it.
Besides being a great SACD/CD player, it also has digital inputs for your music, stored either on idevices or PC
Slightly more than $15000, but some dealers do provide great discounts..
Hope this helps
Best