And if you listen to the audio recording, you will hear Glen Beck say that Eric didn't want his help in promoting his products. Glen talks about it being because of his "small guy" virtue, but I also suspect it's because Eric realizes it's not a good idea to mix politics and business - that GB support would polarize and negatively impact him through that polarization. I dislike GB's politics about as much as anyone could, but I don't begrudge Eric his beliefs, nor do I even know what they are based on simply knowing that he sent GB some speakers.
Scutterflux, thanks much for those details. Very helpful, and I'll look into those ideas a bit more myself, as I still haven't decided on a direction with the crossovers.