I go to a foam wholesaler. They always have tons of foam scrap CHEAP. As much as I can carry $8.
The foam is dense. White when new it soon (a year of so) starts to turn yellow.
Cuts with a knife. (needs to be sharp. and needs resharpening when cutting foam)
3" thick dense foam all around, and Yes you can drop your item 6 ft onto concrete and no problem.
(though depending on transformer and how it is stuck in there it may want to move in a different direction than the rest of the Amp case... Nothing you can do about that unless you open the case and support it.. usually big standard square types are in danger, toroid usually are bolted down really well)
i have shipped heavy amps using this sort of foam. Never a problem.
The foam is dense. White when new it soon (a year of so) starts to turn yellow.
Cuts with a knife. (needs to be sharp. and needs resharpening when cutting foam)
3" thick dense foam all around, and Yes you can drop your item 6 ft onto concrete and no problem.
(though depending on transformer and how it is stuck in there it may want to move in a different direction than the rest of the Amp case... Nothing you can do about that unless you open the case and support it.. usually big standard square types are in danger, toroid usually are bolted down really well)
i have shipped heavy amps using this sort of foam. Never a problem.