I have the Onkyo 805 and just go into the config and turn the sub off as it is off 80% of the time. That way I can listen to Dolby Digital 5 channel with the bass through the Sierra's. It just takes a few seconds to turn it back on and readjust the front crossovers to 60HZ.

I could use Pure Audio or Direct which seem to cut the sub but I like the sound better using Audyssey's settings through Dolby Digital. In my house, the sub comes through multiple floors and disturbs my wife so I only turn it on for heavy action movies or rock music when it won't disturb others. With the Sierra's, this is not really a sacrifice now!

Michael