I'd love to hear a recording of these
Not sure how helpful this will be, but here's a link to two tracks I recorded with a DAV:
https://www.rapidshare.com/files/3343403998/DAV_Samples.zipBoth are acoustic examples. The first is a collegiate mixed choir, singing a cappella save for some percussion. I used a spaced pair of Senn 8040s (with APE balls) > DAV BG1 > Mytek192 as the main pair, and also had two spaced AT4050s in cardiod pattern as spots on the choir > DAV BG-1 > Tascam DR-680 (already clocked to the Mytek SPDIF input). The soloist and percussion were picked up solely by the main pair--no spots.
The second example is a collegiate men's a cappella ensemble of about 15 guys. I recorded them in two arcs, one in front, the other to the rear of a pair of AT4050s in Fig. of 8 pattern for a Blumlein configuration > DAV BG1 > Mytek 192. Just the two mics, no spots. Minimal processing in both cases.
Neither of these are presented as the epitome of great music or of great audio engineering, but may give you some idea of the DAV, though how you separate that from the mics, the rooms, etc., etc., I'm not sure. I do use the DAV with hobby popular music recording, too, but most often I run a matrix with the board, and usually the board gets a higher percentage in the final mix than the mics, so I don't know that that would really show much about the DAV.
Both files are mp3s at 320 cbr.