I'm in a suburb of Dayton. According to Google Maps, it's about a 4 hour drive but I probably drive a lot faster than the speed they use to make that calculation.
But that's a good point...I don't mind making a day trip out of it if the savings is significant enough.
I do not know the person selling the Rythmik FV15HP. He wants to meet me somewhere and the sub is boxed up so I can't verify that it works before handing over $950 in cash. Apparently he has no presence on any of the online audio/home theater communities. He's basically selling an entire audio system consisting of the sub, Polk speakers, and a few Emotiva pieces. If I go this route, I'm just going to have to trust that it's in good working order. I'd hate to buy it, having problems, and then have to mess with shipping it for service.