gsbadbmr said:
Airmail = Conveyer Belts = Hard Drops = DAMAGED boomboxes
Shipping boxes is, and will always be risky business. I hope you get a full refund
You said it!
Sharp GF777 is very fragile to begin with. The side and top don't have any plastic or metal reinforcement to withstand a gentle hit.
Double boxing with Styrofoam beads (peanuts) might help. Imagine a box well packed colliding at the corner area of the conveyor belt (Multi-level baggage carousel) with another big travel baggage. Depending on how many instances it has to go through this impact test the damages can become more severe.