What's a good upgrade from a Krell 300cd cd player

Cool! Do you also have a Hyundai to swap for my Porsche? Tires ($2000.00) every 3 months and the related high dollar maintenance is killing me. BTW, the SACD III is the same inside excepting the transport and software to run it. It is light years below 505 performance. I still want one to complete my KAV stack, sound isn't everything... Should be a pretty good guest room system!

Has anyone had a chance to A/B the Evolution 505 vs. the SACD Standard MKIII? I would think that they would be sonically close in a balanced (non-cast) system...

The folks at Krell have heard and measured the differences.
The Dacs are different. Jitter reduction is WAY different. The 505 has TWO power supplies. The list goes on... Once again, the 505 is a huge upgrade from the MK III.

Zieman: The DACs are exactly the same> Three Burr-Brown PCM1738 DACs / The Transports are exactly the same / The 6 reconstruction Filters (4 for SACD & 2 for CD) are the same (though numbered differently) / Both use 2 Power Supplies> a switch mode supply to drive the transport mechanism and a toroidal transformer for the analog stages, with multiple stages of regulation / Both utilize a double box arrangement, and I believe that both use the same microprocessor. The measured specs are nearly identical, as per Stereophile Magazines's Dec. 2003 Review of the SACD Standard MKI and their Sept. 2008 review of the Evolution 505. I figured that the SACD Standard MKIII would compare closer still to the Evo. 505, since it was developed after the Evolution Player.

I would recommend that you spend more time on "the phone with the wonderful folks at Krell", before your next post regarding their products...

I agree with Elite, except that the 505 does use a new anti-jitter circuit and it may have made it into the newer SACD Standard III. They are pretty much the same.