Jim:
Best course of action is to immediately inform the seller and FedEx. My next call would be to PSB. Most companies are very helpful in these matters; they will be able to give you guidance. But, to answer your question, the easy thing to do is put the speakers next to one another, play a mono CD or LP and play one speaker, and then the other. If they sound different, there are issues. Usually though, drivers are not typically damaged in shipment, cabinets are. Of course, if you hear a scraping sound from the driver when you play music, then the voice coil is no longer in the linear part of the magnetic gap and the driver will have to be replaced or reconed.
Best course of action is to immediately inform the seller and FedEx. My next call would be to PSB. Most companies are very helpful in these matters; they will be able to give you guidance. But, to answer your question, the easy thing to do is put the speakers next to one another, play a mono CD or LP and play one speaker, and then the other. If they sound different, there are issues. Usually though, drivers are not typically damaged in shipment, cabinets are. Of course, if you hear a scraping sound from the driver when you play music, then the voice coil is no longer in the linear part of the magnetic gap and the driver will have to be replaced or reconed.

