Clarity.
I just upgraded the wires in my interconnects from my source to volume control.
As impressed as I was by upgrading the RCA to Furutech 102R, upgrading to their Alpha OCC wires has really done the trick.
The improvement in detail is very enjoyable.
The sound has been cleaned up of a guaze like film that was attached to the instruments.I never really noticed how much was there until I got rid of some more of it.
So, now I've ordered about 16 mtrs for the long runs to the amps.
Hopefully the increase in clarity will continue.
All cables have some kind of sound or sonic signature,no getting around that.
The hard part is that we get accustomed to the sound we get from our current cables and accept that sound as great, good enough or classify it as being mellow and soft.
Until you get to listen to a system that gets closer to the truth,in other words,when you hear a system that is less coloured than your own,you never really know how much music you can be missing when the cables you accept as musical are really just veiling the sound.
My advice is to try as many different cables as you can,but first, seek out a really great system that tells it like it is, and then try to get your system to deliver as much of that sound for what you can afford in cables.
Or, for $500.00 you can DIY a pretty decent 1 mtr pair of IC,that will compete with some cables costing twice as much or more.