This is the third instance of this situation we are aware of. In use, we have never had a problem with the Accuton midrange driver. But while testing this and another Accuton driver, we were easily able to shatter the cones. If you touch it with any pressure at all, the cone will shatter. If the driver hits its XMAX, the cone will shatter.
Fortunately, we solved the shipping problem. We now place the cartons on a pallet and ship by truck. Since you have to use a pallet jack or fork lift, it is hard to drop the packages. So the drivers are not exposed to the kind of g-forces that might be in play with FedEx. I should note here that since we adopted our present packaging techniques, we have had almost no problems with FedEx shipping with hundreds of pairs of speakers shipped each year. FedEx seems to do a great job. But we probably won't use them any time soon for speakers with Accuton drivers. Better to be safe than sorry.
- Jim