Diamond Series Microphones ELA M 251E The ELA M 251E is a meticulously accurate reissue of one of the most legendary microphones of all time, featured on countless hits and classic recordings. ELA M 251 (Discontinued) Standard production of the AC701 based ELA M 251 has been suspended. Please note that we will continue to produce the 6072a based version, the ELA M 251E. ELA M 251T Based upon the classic ELA M 251E microphone, but with a modern twist: The 251T utilizes Alloy 2213™ as the diaphragm membrane material instead of gold. U47 The TELEFUNKEN Elektroakustik recreation of the iconic U47 is exact in every detail, down to the historically accurate BV8 transformer and M7 capsule. U48 A historically accurate recreation of the legendary U47 variant, the U48 features bidirectional (figure 8) capability, as well as cardioid. C12 Revered for its smooth and airy frequency response, if there were ever a microphone that was the epitome of classic, hi-fidelity sound, it would be the C12.