Aren't LD's like AKG414's inherently quieter that most SD's? I realize you have to be careful with apples vs oranges on these noise figures, but a 414XLS shows 6db noise, compared to 15 for the Emesser. While LD's will have polar charts that show significant differences at different frequencies for most of their patterns, generally they are consistent on the Figure 8 setting.
I know it seems bizarre to most people to use mismatch mics, but I have seen a guy use an AT40xx LD for figure 8 and an Octava 012 card for mid, and it sounded pretty damn good.