If I read the manual correctly, it would appear that even when you do not engage a HP filter at the 80hz, there is always a summing of the 5 channels and filtering of the low pass to the sub. In otherwords the.1 channel is always adding bass from the other 5 channels. Is this correct?

If so, how could one truely use a ICBM with this pre-amp for greater crossover flexibility? seams like the 950 will be adding unwanted processing in the back ground . . .

Adrian