Which power cords help ameliorate digital glare/grain/digititus?

I have found that power cords can help with noise and EMI I found the biggest improvement in my digital library was my DAC. I have a Krell Digital Vanguard and initially I thought cool an internal DAC great until I got an external RME-ADI-2 DAC running balanced interconnects into my Krell. All I can say is WOW. I love my vinyl but the change in depth, warmth and clarity is amazing! 
This is worth every penny of under $1k

Everything makes a difference.   I would be sure your digital equipment isn't contributing before looking for cables, etc.  Why look for zebras when a horse is over there.

Ya gotta be real careful of that arthritis, dude. It’ll make it all the way up to the brain.

Flat Earth science pervades these discussions! A power cord has about as much effect on SQ as a copper bracelet has on relieving the discomfort of arthritis!

On the off-chance that nobody has mentioned it yet, how about power cords that are controlled for directionality? Also, power cords that are suspended off the floor. Power cords with white jackets. Power cords with cleaned and conditioned plugs and wall outlets.

I will say Many are helped by competent power conditioners.  That has solved many a headache.

+1 to @celtic66 's post.

I think shielding can help, but otherwise I think you should consider your DAC and room acoustics.

I haven't suffered from digital glare in ages.

Agree with Erik. My digital  suffered until I put together a transport, cable, and dac that was able to control jitter. Also works very well with my streamer.
Treating the room is always a must no matter what format you use.

In my quest to remove glare I tried using so called "digital" cables such as JPS and others, but they weren't as lively sounding as a good quality shielded cable. I'm not putting down these digital PCs, just saying in my system good shielding was an improvement.

I think shielding can help, but otherwise I think you should consider your DAC and room acoustics.

I haven't suffered from digital glare in ages.

If you have this thing, then can we not get rid of the thing making the bad thing?

The core of problem solving is always correctly identifying the real problem and removing it.  Otherwise, a series of bandaids follows in attempts to herd the problem.  Not all digital sources carry nasty digititus or glare or grain.

We’ve really nothing to go on here, but I will say Many are helped by competent power conditioners.  That has solved many a headache.  Perhaps in your case also.  Hope you resolve the nasties.

After testing with bunch of different power cable configurations, the idea that a power cable is "designed for digital" is pretty much a misnomer in my opinion.  I keep telling people that solid-core conductors win in all cases, whether it's digital DAC, preamp or power amplifier.  Solid core just sounds more natural.  In some of my tests I compared a very expensive Furutech OCC stranded copper power cable against a hand-built cable made from 20awg solid-core radio shack hookup wire.  It was clear that the Radio Shack did not have the resolution of the Furutech, but it just sounded so much more natural and engaging and easier to listen to. The Furutech, even though it was made from the absolute best copper, had a weird digital phasing and solid-state sounding effect.  If I had to pick, I would pick the Radio Shack cable EVERY TIME!

I suggest looking for a used Audioquest NRG-2 or NRG-4 (even the older NRG-3/5 cables are excellent).  Costs vary, but they are all built using 21awg solid core conductors for hot and 19awg solid-core conductors for neutral/ground.

Keep sleepwalking, indeed!

"Aftermarket power cords cannot improve sound quality, but they can be made in such a way as to mitigate EMI whilst delivering sufficient current to the load."    

Keep sleepwalking. 

Aftermarket power cords cannot improve sound quality, but they can be made in such a way as to mitigate EMI whilst delivering sufficient current to the load.  

To clarify, I'm aware of cables reputed to address the issue, but I'm interested primarily in hearing from people who have a broad range of personal experience.

I believe that's the idea behind this Shunyata model - I haven't tried it however but I'm sure someone in this forum has.

https://www.musicdirect.com/cables/shunyata-zitron-alpha-digital-power-cable