That arrangement will work fine for most anything you want to do (assuming you have the mains set to "large" and the sub set to "off" in the 950's setup), but if you are using a DVD-Audio or SACD player you are most likely losing the .1 channel from those discs. If your DVD-A/SACD player includes bass management for those discs, you can set the mains to "large" and the sub to "off" and you'll be fine, but many players (especially older ones) have no bass management for DVD-Audio and SACD. In that case, the .1 signal is being passed from the player to the 950 and then lost at the unused subwoofer output on the 950.

If you have true powered subs in the main speakers and are concerned about this problem, you might consider the possibility of adding interconnects from the sub output to the line level inputs on the subs' power amps. That would allow you to pass the .1 signal to the subs.

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