I've had an ICBM since they came out. I'm using it for a crossover between my preamp and amps. I have a pair of Magnepans and an ACI SV-12 home built passive sub. I orginally was using a Pioneer THX Ultra Elite reciever to do crossover work. The ICBM is so much cleaner and tighter. I now have a Perreaux preamp and the ICBM has no problem being in the same system even though it is by far the cheapest component!