What does "voiced" mean to you?

As others have said "voicing" applies to the sound the equipment designer is going for.  What we as system owners do is choose to purchase components whose voicing in concert with our other components gives our system the sound that is most musically satisfying to us based on our personal preferences.

 "Tweaking" is what we do to our gear to edge our system sound ever closer to what is most musical to us. This is where tube types/brands, footers, chassis damping etc. comes into play.  For many of us this is where the real fun comes in as we get to feel like these system tweaks give us the power to determine our system's ultimate sonic outcome.

Voicing turntable could be most fun, speakers are easy.

Don’t know about voicing a table I’ll leave that to the designers out there. But tweaking a table setup can be quite the thing.

Once I watched a tree in the forest fall
yet it didn't make a sound
chagrined as I was by this  anomaly
i went quickly to the ground 
as it is with all that begins
the tree, alas, was not plugged in.