Rens Heijnis custom-built audio equipment - Although the DPA/B&K 4003, 4004 and 4012 have a transformer less output and a 130V power supply, for these microphones are also good improvements possible. The
DPA 4003 OMNIDIRECTIONAL 130V - Thomas Hirchak Company
Matched Pair of DPA 4003 130V Omnidirectional Condenser Microphones with HMA4000 130V Preamp | Reverb
Mic demo: DPA omnis on guitar and vocal - YouTube
Rens Heijnis custom-built audio equipment
B&K Bruel and Kjaer DPA 4003 line level 130V studio microphone + cable & box | #1881779277
Matched Pair of DPA 4003 130V Omnidirectional Condenser Microphones with HMA4000 130V Preamp | Reverb