Best I've found is Pilot Air. A number of speaker companies use them and they are also happy to deal with consumers. They pretty much palletize everything automatically and have been a pleasure to deal with on 3 different occasions, with no issues whatsoever (including tubes).
I've also had good luck with Yellow Freight, but you HAVE to specify a pallet or else its a crapshoot.
On my "stay-away-from-them-or-they'll-break-your-speakers" list: FEDEX Ground and UPS.
Good luck.
I've also had good luck with Yellow Freight, but you HAVE to specify a pallet or else its a crapshoot.
On my "stay-away-from-them-or-they'll-break-your-speakers" list: FEDEX Ground and UPS.
Good luck.