80Hz has long been something of a standard crossover point - most bookshelf speakers, center channels, and surrounds can get to or at least close to 80Hz without dropping off much, and it is also the speaker-to-sub transition point chosen by THX as their basis of design for home theater speakers. For a great many people, 80Hz is a pretty reasonable crossover point.

It may be worth clarifying that only the 950's multichannel analog input is limited to the 80Hz crossover point for all speakers. For any digital audio sources (DVD's, HDTV, CD's, satellite, digital cable) and for stereo analog sources, the 950 offers bass management control in the digital domain that is basically identical to the ICBM except for the lack of stereo subwoofer outputs. You can select different crossover points betwen 40Hz and 150Hz for the mains, the center, and the surrounds.

No word on the 1070, I'm afraid. The latest news was the year end newsletter .