How to unpack 150lbs+ towers

With help perhaps, stand the speaker on its top, open the bottom of the box, then turn the box over right side up (with the end flaps bent out) and then lift up the box off the speaker. Voila! Everything done, no strain, no damage.

Standard practice is one at a time

I owned the S-1EX and they came in a box designed to be stood upright and have the carrying handles removed. Once the carrying handles are removed the box will come open from around the speaker leaving it standing on the bottom packing. I removed the hard foam from around the speaker then leaned it back enough for me to get my hand under the base of it and I lifted it straight up and out,only about eight inches. I then placed it on sound anchor cone coasters and slid them into place. Much easier than it would seem for such a large heavy speaker. Never lift a speaker by its port! I'm surprised Kal didn't know how they were packed but then again, he has probably gone through dozens of speakers and thousands of brain cells since he reviewed them.

Thanks for the tips folks. I'll get a second set of hands to help me lift it out the way Geared4me recommends.
Thanks!

The reason I did not offer any unpacking suggestions is that the pair I had came in sturdy, wheeled flight cases rather than standard cartons. Also, Andrew Jones came along to help me.