Actually, I don't think that there is anything wrong with your setup. There should not be any sound from the sub for stereo SACD's (unless the Pioneer includes some bass management for SACD playback, which I don't know that it does -- digging through Pioneer's site for the manual now). Stereo SACD's only contain information for the left and right channels, so the subwoofer would remain unused. The 1050's 5.1 direct inputs are a pure analog pass-through, with no processing applied, so all you get is volume control and amplification. The Pioneer DV45 does include bass management for the onboard DD/DTS decoder, but I'm not sure if it functions with with DVD-Audio and SACD playback. Judging from an old manual I had handy, the original DV47A's bass management worked only for DD and DTS decoding (for DVD-Audio discs, the player automatically sets all speakers to "large"), so it's entirely possible that the 45 behaves teh same way.

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