The system is as good a it's weakest link. Spend lots of dough on components and use crappy wires ...
I under estimated PC's at the beginning and was not happy with the sound, was replacing other component but the real problem was still there , the PC. Lamp cord , or computer cord can ruin the whole picture.
I've played with shelves under CD player lately. My equipment sits on Finite Elemente audio rack, on Finite Elemente Ceraballs and Cerapucks (one of the best if not the best stuff when it comes to vibration control). I put additional shelf between the player and the rack. Actually I experimented with a couple of shelves made of playwood, wood, MDF, glass..... Again, changes in sound were significant from almost unbearable to much better sound. The best was glass shelf!! (8 mm thick) in my particular system. And the difference is bigger then changing interconnects!, even replacement of stock tube with a very good NOS tube in the amp didn't bring bigger change. A single glass shelf!
