Here's what Scott wrote July 8:
Quote:

The large/small and crossover settings in the by-pass mode do not effect the main speakers. At all times the main speakers will see a full bandwidth signal. If the main speakers are set to "small" in the speaker configuration menu the x-over setting chosen which determine at what point the signal is also redirected to the sub. So, if your main speakers are set to "large" your sub will be inactive during playback in the by-pass mode. If your main speakers are set to "small" and a crossover of 60 Hz is selected, your mains speakers will continue to receive an unaltered full bandwidth signal. However, your sub will also see the bass information from 60 Hz and below.

I think that in bypass, the full frequency range goes to the front speakers even when the front speakers are set to small. This means the front speakers have to be able to handle a *full* frequency range, in bypass. When the fronts are set to small, bass also goes to the subwoofer (double bass).

This is different than the 5.1 analog input, although both can make double bass. With 5.1 analog, the full frequency range does NOT go to the speakers when the bass management switch is on. However the under 80-Hz content always goes to the subwoofer, independent of the bass management switch.

The difference is, with bypass, the front speakers always get the full frequency range, but the output to the sub is optional. With 5.1 analog on the other hand, the main speakers don't always get the full frequency range, but the output to the subwoofer always gets the under 80-Hz content.