Those look really nice, & not as large as I was worried they might be.
I'd really like to hear the 4017 on music too. Please post a link if anyone finds one.
Different line of course, but there is the 4098 miniature supercardioid choir mic, too. I've heard some very nice and clear sounding music samples, but it's response is a bit light down low.
[edit- here's the polar plot for the 4099, which is the same mic with less sensitivity for close instrument mic'ing]-DPA 4007 is the metal (Nickel?) diaphragm, right? Closest I've got is Nevaton and/or Countryman B3. Both use stainless steel.
The only all metal foil diaphram mics (ie: not gold sputtered) I have other than the B3s are Gefell M94 cardioid caps with nickel diaphrams which I just got back from Germany a couple weeks ago, repaired re-skinned and matched. Wooo.
The all metal DPA omni diaphrams are nickel I think. Many measurement omnis besides B&K/DPA use pure stainless steel or titanium foil as well, as opposed to some sort of plastic coated with a very thin layer of metal (usually aluminum or gold). As I understand it the primary reasoning behind doing so in a modern microphone is for less potential for slight measurement variations with age and/or change in environmental conditions such as temperature.