Capsule: CK12 - 1 inch, gold vaporized diaphragm on both sides
Frequency range: 20Hz - 20 kHz
Polar pattern: cardioid, omnidirectional and figure-of-eight
Sensitivity: approx. 1.2 millivolts per dyne / cm2
Impedance: 200 Ohm / 50 Ohm, switchable
SPL: 138db
Nonlinear distortion: Equal to or less than 0.5% at 100 dyne / cm2
Equivalent noise voltage: 16db (A-weighted)
Tube type: 6072a General Electric JAN dual triode
Voltage: Dedicated power supply
Weight: 567 grams, 960 grams with connector head
Size: 216mm x 51mm in diameter
Included in delivery: lockable flight case, power supply, wooden microphone box
Telefunken ELA M 251 E overview
Probably the best sounding microphone ever made, the original TELEFUNKEN ELA M 250 / 251 was sold in two versions: First, the "ELA M 250E / 251E" version with a 6072a tube, and the "ELA M 250 / 251"-with a TELFUNKEN AC-701 tube. The microphones without the "E" appendix were built according to the broadcasting standards of the time in Germany and Austria. While both versions of this microphone now have legendary status in the modern recording industry, getting there was not a foregone conclusion.
