One aspect of my new apartment is that, smaller than the old one though it is, the layout and my furniture placement impose longer distances than before from my amp to where I might listen.
Longer than the stock cable supplied with my beloved Audeze LCD-X headphones would permit.
Now I think the stock cable that came with the headphones is perfectly fine -- and I'm skeptical about the value of "upgrade" cable.
But if I want to use my headphones here (and I'm sure my downstairs neighbors want me to even if I don't), I need longer cable. The available stock upgrades (which aren't even really stock, but rather "premium" in their own right) aren't long enough.
So I had to go into the secondary market.
Moon Audio makes "upgrade" cables for Audeze headphones that are very well regarded.
Moon Audio recommends the "premium" version of their Black Dragon cable for Audeze LCD-X headphones like mine. So that's what I got. Is it a "night and day" improvement? Absolutely not. Is it a detectable improvement? Absolutely yes..
Instrument separation is improved. The lows are extended but also rounded. The highs are smoothed out a bit -- which some would count as a negative, but which to me enhances the listening experience.
Is the difference commensurate with the high price of this cable? No way!
But since I bought this cable primarily for the extended length, I'm shocked and surprised (and happy) to hear there even is an audible sonic difference.