Ahh.. spicy discussions. I guess that is what Jay wanted to achieve when he started this thread.
When I mentioned the standard RS1500 and other standard R2Rs, I should have said 'other standard consumer R2Rs', because my statement indeed would not be true for many of the professional Ampex, Studer and Telefunken machines.
With all respect for the RS1500 (mechanically that is), the standard unit makes a pretty sloppy copy of the original feed. People may like those colorations, which is fine, but you cannot say it sounds 'good' as in a good reproduction of the original. Ironbutt's modified and 'tubified' RS1500 is obviously in a very different league than the standard RS1500.
I take my analog tape very seriously, but the same goes for my digital playback. I'm very familiar with the EMM combo, which performs extremely well on (multi channel) SACD. On redbook CD it doesn't justify its price tag.
What we are missing is an honest comparison. A modern recording that is mastered both in analog and in current state of the art digital. That would be real interesting because a properly dithered modern digital mastering doesn't have any 'holes' in the information flow.
I'm in no way trying to undermine our tape hobby, but my engineering side is always keeping track of the objective side.