Darth Editous said:
Okay this is with the proper color space and just the detail enhancement. No grain or sharpening.
You say "no sharpening" but that looks a lot like sharpening to me - Photoshop Sharpen More faded to 50% (plus a little colour blurring) is practically indistinguishable:
http://screenshotcomparison.com/comparison/40229
DE
It looks sharper, but I never even added one sharpening filter. I usually soften the picture more before adding the grain though. Some of the earlier comparisons I did accidentally add post-downscale sharpening, which shouldn't be there.