keta: thanx for the details. i understand now some things i could only guess before.

the solution to your dilemma with this setup is a simple one:

since, when you switch to 6 channel bypass, you are only using the 950's preamps section, you can take the player's analog sw output and run it into a separate preamp (you can use a mono mic preamp and they start at about $65, but i would use a better one. see behringer shark or art @ zzounds or use any preamp you might already have lying around). from there you can input it into your controller. switch the 950's BM to 'off'. since there is no longer anything plugged into the 950's sw output, there will be no double bass and the system will work as you want it to.

when you switch to a digital source, the question will be: does the analog output of the player get the lfe signal, or the digital connection, or both? if your player sends the lfe to both or the analog output, you're good to go with all formats.

as far as protection of your center speaker, use caution with sacd discs. some send serious bass to the center.

also, i highly recommend consulting KCB about phase issues. this is a very important tweak in a system like yours and kevin has it locked.

i appreciate your input.