You do need a minum quality casing, or the sound will be impaired. Take Conrad Johnson for example. I used a premier 17 Pre for a few years and very good it was too. However the thin, resonant top plate did'nt do it any favours at all and needed some weight on it, to improve the sound.
I do take the point though, cases milled from solid obsidian with diamond inlay, would be overkill.
I do take the point though, cases milled from solid obsidian with diamond inlay, would be overkill.