Heavy equipment likes to migrate in popcorn, it will keep moving till it pushes it's way to the side of the box, then the shipper does the rest....
Here is a UPS job, also was missing the foam corner support, drivers comment "The inner box looks OK" as he walked off. Heck of a way to destroy a $70 factory carton, the preamp came out OK though.
On the RT-909 packaing, you need about 1" clearance arond the reel spindals. If the package gets dropped on the sides, top or bottom, the machine will move in those directions, while the face protection foam will not. This will cause your spindals to get bent.Here's my methods, I'll be doing a "Monster receiver" Page soon, but it's very similar to the RT 909 shown!
Standard Size
RT 909
Speakers
Heavy equipment likes to migrate in popcorn, it will keep moving till it pushes it's way to the side of the box, then the shipper does the rest....