Thanks for all the responses; I just have the stock strings on, which I believe are the blue label 45-130T. It sounded like a string issue at first, so sadowsky was nice enough to send me another b string- but I had the same issue. I also tried an old R. Cocco string.
The main characteristics of the b string is a lower volume, unfocused sound, and a bit of a worbal/overtones (just very anemic sounding). I thought at first it must either be the string or the pickup. After I pretty much determined that it is not the string, I though maybe the pickups are too close to the string- causing some magnetic weirdness, so I lowered the pick ups, and still had the same issue - low volume (compared to the other strings) and worbal. You can hear this difference when the bass is unplugged as well. The string just sounds wrong. Maybe a frequency anomaly? or a bridge issue? Who knows? All the other 4 strings sound great, it will just be my faux 5 string for now