And what, exactly, is the problem with running some cables a few meters? Sounds to me like you can quickly solve this problem by purchasing some 3-5 meter cables. What's the big deal?
Well, the question is whether that will degrade the sound.
I had a surprise with an HDMI cable the other day. For reasons particular to my own brand of insanity, I figured that a 25' Mediabridge cable running from my HDMI switcher to my TV would do well. 594 out of 678 customer reviews on Amazon suggested it would be fine. I figured that HDMI is HDMI (I have some Audioquest HDMI cables that never struck me as more impressive than Monoprice or Mediabridge).
The only problem I had was that my Monoprice HDMI switcher would need to be woken up by having the cable pulled when I did this. Alright, I wrote to Monoprice and they said I should use either a heavier gauge cable or a Redmere. Alright, in the grand scheme of things that's not a lot of cash. I plugged in the Redmere and NO WAY. Both my wife, hereforth known as the Unbeliever, and I couldn't believe how much more contrast there was. It was as if the Mediabridge cable was desaturated 30%. Not 2%, 5%, 30%.
We compared a shorter Mediabridge cable and some others. There wasn't a difference. Unless this one was a dud, it seemed clear that Monoprice was right and many cables don't have the ability to handle such long runs.
Again, my thought is that shorter runs in HDMI, Coax, Toslink, and so on will be better.