High end multipattern tube microphone with legendary M7 capsule from Gefell. Sounds fantastic. Im including also the capsule and circuit pics so you can see its all original in great condition. There was performed the modification suggested by Oliver Archut (TAB-Funkenwerk) to remove EMI protection circuit from signal path, the modification cleaned up the sound of the mic - read more here: http://recordinghacks.com/microphones/Microtech-Gefell/UM-92.1-S . The power supply is high-end custom built one.