dlcockrum,
Yes, you make a very good point regarding implementation of DAC chips but the Sabre is an 8-channel part. So, four channels of the Sabre are stacked (paralleled) for both the left and right stereo outputs from one chip not two chips. That was how the Oppo 95 was configured and most but not all other Sabre DACs. Now for 105 and I believe 205 Sabre chip breaks down as, one pair of DAC channels feeds the RCA stereo outputs, a second pair feeds the stereo XLR balanced outputs, and two pairs are stacked for the headphone output. The second chip like you said is used for RCA analog output jacks.
Yes, you make a very good point regarding implementation of DAC chips but the Sabre is an 8-channel part. So, four channels of the Sabre are stacked (paralleled) for both the left and right stereo outputs from one chip not two chips. That was how the Oppo 95 was configured and most but not all other Sabre DACs. Now for 105 and I believe 205 Sabre chip breaks down as, one pair of DAC channels feeds the RCA stereo outputs, a second pair feeds the stereo XLR balanced outputs, and two pairs are stacked for the headphone output. The second chip like you said is used for RCA analog output jacks.