For DVD-Audio and SACD playback, you will need six extra analog cables -- and you will want to leave any bass management options set to "off" (all speakers large) so that the analog bass management on the 950 can handle it. For DVD-Video (DD/DTS decoding) and CD playback, you will probably want to rely on the digital output from the 47a to the 950, leaving the 950 to implement digital bass management and D-A conversion. (See Kevin Brown's post in this thread from earlier today -- he has a 47Ai and a 950 configured just this way).

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