Durham42, comparing a Sony with the Linn is not a fair test, the Linn is arguably the best one-box player out there, at least to my ears, and the Burmester is a top of the line DAC, while the stock Sony is comparable to a Wadia 830/850 level player at best. What was your impression when you listened to both redbook and SACD through the Sony's output stage? That's really the appropriate test.
This thread is too long for me to digest everything said, but I'll throw in my two cents on at least one aspect of the question. As I hinted above, one of the limiting factors in comparing SACD (or DVD-A, for that matter) to redbook CD has been that the best of the high end manufacturers, as well as the recording industry, have spent the last 20 years trying to make redbook CD sound the best it can, but SACD and DVD-A are still in their comparative infancy, and the best of the designers (save Meridian, Ed Meitner and dCS) have not really been willing to throw a lot of money into R&D for formats which might not make it in the marketplace. To some extent the hi-rez situation reminds me of the early days of CD, where there were a lot of modifiers out there who would take major manufacturers' cost-compromised offerings (principally Philips/Magnavox units then, as they were the easiest to work with) and come up with modded units that were far better than the originals but certainly no match for today's players. I see the same going on with hi-rez units (I've had a lot of the mods made to my Sony SACD player). The question is whether the formats will take hold enough for talented designers to devote the time and effort they did to CD; if they do, then you might see the promise both of these formats hold be realized.
This thread is too long for me to digest everything said, but I'll throw in my two cents on at least one aspect of the question. As I hinted above, one of the limiting factors in comparing SACD (or DVD-A, for that matter) to redbook CD has been that the best of the high end manufacturers, as well as the recording industry, have spent the last 20 years trying to make redbook CD sound the best it can, but SACD and DVD-A are still in their comparative infancy, and the best of the designers (save Meridian, Ed Meitner and dCS) have not really been willing to throw a lot of money into R&D for formats which might not make it in the marketplace. To some extent the hi-rez situation reminds me of the early days of CD, where there were a lot of modifiers out there who would take major manufacturers' cost-compromised offerings (principally Philips/Magnavox units then, as they were the easiest to work with) and come up with modded units that were far better than the originals but certainly no match for today's players. I see the same going on with hi-rez units (I've had a lot of the mods made to my Sony SACD player). The question is whether the formats will take hold enough for talented designers to devote the time and effort they did to CD; if they do, then you might see the promise both of these formats hold be realized.