Whatever did you find out about the B2? I have one and also felt it negatively affected the bass in my IB sub. I had a few exhanges with Bob but that went nowhere. I moved on... probably should have insisted on returning it. Instead it has just sat on a shelf. I just thought about it yesterday. I see today Bob no longer has Reckhorn on his website. I wonder what happened. Anybody looking for something like that should probably consider a miniDSP.