Hmmm...even though the manual states that the three position toggle switch is for the 7.1 inputs only, I'm sure I played around with this a few months back on my 1070 and noticed that it affected the other analog inputs, or at least the CD input. Specifically, with my DVD/CD player connected via the CD analog inputs there was a bass signal sent to the sub in bypass mode with the switch in the HPF/LPF setting but no output was sent to the sub with the switch in the bypass position. Anybody else experience this behaviour?