Just my opinion, but the site is really not bad. It could be more polished, but whos couldn't? Again, just my opinion but the real deficiency is the lack of description/differences between the speakers. Professional designers can't help there.
IMO (yet again), only Eric can do that, but taking the time to do that may be perceived as of lower importance to trying to get all of the orders out and the time designing new products.
I agree that he probably needs to take a really critical eye to his product line and see if he needs all of them and then to help any potential buys discriminate between the speakers while providing information as to recommended room sizes, types of amps, music types, etc.
Whatever might help discriminate one from another. I think he needs to do that and he will get more orders and have to be on the phone less. I think he still will need to deal with infrastructure also. I am not sure he can handle all the growth he has going on now and even more growth may cause further delay in shipping speakers.
I hope he does get to it though. I think it would help him.