Here's an update. I can't believe this is dragging into the new year, but c'est la vie. Marantz initially tried to repair the machine, but was having trouble in doing so. Now they want to trade the player for the DV-12S2 and have me pay additional money! I did some research on all of this. The SA-12S1 uses 12 CS4397 DAC chips whereas the DV12 uses three CS4392 DACs. The SA-12S1 also uses the higher quality super ring transformer whereas the DV-12S2 uses the more pedestrian EI transformer, as do the 9500 and 9600. Apparently the machine still sits in Japan and for whatever reason cannot be repaired. I received a call from the local office on Monday that they were willing to go ahead and offer the DV-12S2 as a replacement. I told them the results of my research, that the CS4392 DACs in the latter machine were of a lower quality than the ones in mine and that the quality of transformer was liable to affect sonic output as well. I told the caller that the machine should be replaced by an SA-11S1, which has comparable sonic output even while lacking DVD video playback capability. She said that would mean my paying more money for the trade. I said that I shouldn't have to pay anything if Marantz cannot repair their own units. My preference would be to retain my machine, which despite reliability problems has great sound. I have yet to hear back from them, but that's hardly a surprise since they weren't very helpful in responding over the past three months either. Any additional comments or suggestions would be appreciated. my sense is that settling for a DV-12S2 or a DV9500 or a DV9600 would be a step down in sonics. I still cannot believe that Marantz cannot repair one of its product lines. This seems absurd to me.