I've been using an ICBM for a couple of weeks now, and I'm not completely sold on it. I have it between my receiver and outboard amps. I purchased it because my Yamaha RXV1300 receiver only has 1 crossover choice - 100Hz. What I have read about the ICBM seems to imply that any signal below the crossover selected for that channel will be routed to the sub. Since there is a full LFE channel being input to the ICBM, due to the speakers being assigned "large with sub on", wouldn't that effectively cause the double-bass problem we're trying to get around? I'm sure I'm being dense here, and not seeing something obvious. Is the ICBM more that just a signal router?