At some point you need to use wood/plywood on a pallet to insure safe transit. The big 3, usps, ups, fedex have a poor record shipping our expensive and cherished audio components. Good luck collecting for damages also. I have had a couple of nightmares via UPS, they delivered a set of speakers to Florida and left them out in the open to soak up the afternoon thunderstorm. The gorgeous finish on the monitors was trashed, cones soaked- a total loss. They tried to blame me saying they were poorly packed. I got $400- for $2k speakers.
If you want it to get there safely, go freight.
If you want it to get there safely, go freight.