External crossover enclosure - side panels....marble or solid wood?

ZLTFUL

If you use granite, how do you plan on mounting it? I am sure that if you dampened it with either a rubberized epoxy or rubber isolation, it would help reduce that greatly.

I still prefer wood. Like I said, it just has a warmth to it visually that stone can't match.
And if you want dense, go with a nice walnut root burl. Hehe.