I worked on a shipping dock when i was in my late teens. Believe me, products that are well packed and strapped to pallets get beat to death and damaged. I would not want to rely on anything less than "built like a tank" packing to ship a pair of large speakers. One drop, bump or something falling on them could make them damaged beyond repair or "cosmetically challenged" otherwise.
As a side note, all speakers should be "shunted" when shipped. You can do this by shorting out the positive and negative binding posts using a piece of wire, a paper clip, etc... Some people prefer using a very low impedance resistor ( a few ohms at most ) rather than a straight piece of wire. Either works fine but the seller should make clear that the buyer needs to remove the shunt prior to operating the speakers. With all of the different "jumpers" on various speakers, don't take for granted that a buyer will know enough to remove the shunt. If you don't make them aware of this and they don't know any better, you will have one very irate buyer on your hands.
What a shunt or resistive shunt does is to keep the drivers from "throwing" or moving about freely while in transit. In effect, it uses the magnet to act as a brake on the voice coil. This holds it in place so that the driver can't be damaged from excursion, etc... Sean
>
