To be honest, I don't really think you'd notice all that much difference between 60 Hz and 80 Hz crossovers (just using the 950).

I currently have a Sony TA-E9000ES where I can also choose any crossover for any speaker. My mains are flat (or "close enough") to 30 Hz. I've tried 60 and 80 and couldn't hear a difference. Just left it at 80 Hz, for no other simple reasons than that is what the THX spec is, and that's what I also use on my center and rears.


So, even if you put the ICBM in between the SACD/DVD-A player and 950, and *tried* to crossover at 60 Hz on the mains, the 950 itself would still redirect the info from 60 to 80 Hz to the sub.