thanks for the comments !
I'm not sure if the difference between "Rock" and "Rock studio" versions are significant for me :
[1] I mainly record "loud" concerts...
[2] I intend to run those mics with an AD20 so the difference in hiss between the two versions should be significantly decreased by the use of a preamp (

)
I wrote to Soundman and got an interesting answer :
Rolf (yes, he is nice guy

) told me that the capsules can be powered up to 10V. A company called "DACS audio" sells a product (the "PPA") that allow to use a 48V phantom power supply. It basically converts the 48V Phantom Power into 7.5V for use with the mics. I was just wondering what kind of components are needed to do something like that.
thanks again
