Bobble wrap 2-3 layers box with 2" Styrofoam all around and Styrofoam cut to fit where needed, double box with 1" styrofoam between inner and outer box, if not a tight fit, fill with Styrofoam. If frets are removed and packed seperately, tape a piece of heavy cardboard over the drivers. IMO the drivers are best protected where they are.
Beosound 3000, BL 4000, BL 8000, BG 2404,BG 5000, BG CD50, Beocord 5000, BM 901, BM 2400, BM 4000, BV S45, BV 3702. There is nothing we cannot do, but a lot of things we don't want to do!!