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TELEFUNKEN Elektroakustik ELA M 251E Microphone  From TELEFUNKEN

Possibly the most beautiful sounding microphones ever manufactured, today vintage ELA M 250 / 251 [both 'E' and 'non E'] microphones have become rare and highly sought after jewels, commanding tens of thousands of dollars on the vintage market. You will find that the TELEFUNKEN Elektroakustik recreations exemplify the best qualities of the best examples of these legendary beasts, and while more expensive than most modern microphones, they are true to the heritage of their 40+ year old brethren.

TELEFUNKEN Elektroakustik

$9,495.00

Retail:  $10,995.00

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$30,000 Mic Shootout : Bock 407 vs. Telefunken 251 E vs. Manley Reference Gold vs. Telefunken u47

In this shootout video, SoundPure Pro Audio Expert, Travis Hall, compares four of our top-tier microphones in this blind shootout. Email us at proaudio(at)soundpure.com to get hi res files or to get the results! For this shootout, we will be comparing the Bock 47, the Manley Reference Gold, the Telefunken u47, and the Telefunken 251 E. All these mics are available for SoundPure’s "Try Before You Buy" program, so if you want to hear how they sound in your studio with your gear, shoot us an email at ProAudi(at)SoundPure.com. If you like what you hear, you can check out all the gear used in this video at SoundPure.com or give us a call anytime at 919.682.5552. Thanks for watching!

Manufacturer's Description from TELEFUNKEN

Arguably the most beautiful sounding microphone ever produced, the TELEFUNKEN ELA M 250 / 251 was originally sold in two variations: the "ELA M 250E / 251E" version utilized a 6072a tube, while the "ELA M 250 / 251" version contained a TELEFUNKEN AC-701 tube. The "no-suffix" microphones were built to satisfy the standardized requirements of the German and Austrian national broadcast systems. While both versions of these microphones have achieved legendary stature in the modern recording industry, the road to achieving this legendary status was far from instantaneous.

In 1947 Neumann GmbH first built the U-47 microphone. From 1947 to 1958 TELEFUNKEN GmbH used their established global distribution network for the products produced by Neumann GmbH, which were sold under the TELEFUNKEN name with a TELEFUNKEN logo badge.

In 1958 when Neumann GmbH notified TELEFUNKEN GmbH that they had decided to not renew their distribution contract, TELEFUNKEN reached out to AKG Acoustics about the possibility of AKG creating a "U-47 like" model for TELEFUNKEN to plug into their global distribution network.

This U-47-esque microphone was to be known as the ELA M 250. Like the U-47 this new microphone featured the pattern selection (cardioid and omni-directional) switch on the head of the microphone. Around 1958 Neumann GmbH also released their U-48 microphone which featured cardioid and "figure 8" pattern selection. The TELEFUNKEN ELA M 251 was an amalgam of the two as it featured 3 pattern (cardioid, figure 8 and omni-directional) selection capability.

The switch housing at the base of the capsule assembly is where the similarity between the Neumann GmbH U-47 / U-48 and the ELA M 250 /251 microphone series ends.

The TELEFUNKEN ELA M 250 / 251 features an edge terminated, dual backplate CK-12 capsule (as found in the AKG Acoustics GmbH C-12). The amplifier was the same circuit found in the C-12 that featured a GE 6072 tube and a Haufe 14:1 ratio output transformer. As previously mentioned, a system that featured a TELEFUNKEN AC-701 tube was also designed to meet the technical specifications of German and Austrian broadcast during the period when these microphones were originally constructed.

While the C-12 accomplished pattern selection with an outboard switching device that was connected to the power supply, the ELA M 250 / 251 eliminated that addition to the system and minimized both the quantity of wires that had to run to the microphone as well as the expense of the external pattern selection box.

The design engineers at AKG Acoustics also came up with another very handy feature, which was the capability to minimize the time necessary to accomplish "field repairs" of the microphone. Both the C-12 and U-47/48 microphones require a fair bit of knowledge, a steady hand, as well as a couple of screwdrivers to get to the internal workings of the mic.

All that was required to "field repair" the ELA M 251E was the removal of the ring on the bottom of the body and the metal body tube would slide right off (no tools necessary!!). Once the body tube was removed either the capsule or the amplifier could be replaced in under a minute saving precious time when under the gun in a broadcast or orchestral recording environment.

The amplifier in the ELA M 250 / 251 series is housed in a molded plastic enclosure. The capsule is held in place by two metal struts that run up the exterior of the amplifier housing. By implementing this system, either of these critical components could be replaced in seconds and the session could continue while either system element could be sent to the technical shop for "component level repair". This convenience was something the broadcasters of the time found to be a major plus as they had thousands of dollars of musicians sitting around for the live music broadcasts of the day. Any time saved cut down on the expense of the session, and added to the quality of the broadcast.

Unfortunately for TELEFUNKEN GmbH, these field replacement provisions also proved to be a sales impediment outside of the orchestral recording world as the plastic bits employed in these microphones added significant cost to the construction of the microphones.

The added cost made them markedly more expensive at the time than the Neumann GmbH and AKG Acoustics GmbH products, thus the non Government owned facilities of the time did not adopt these systems as readily as TELEFUNKEN GmbH would have liked. It is thought that fewer than 3700 total original ELA M systems were built from 1960 to 1965 when TELEFUNKEN GmbH discontinued sales of the microphone.

Today, prime examples of vintage ELA M 250 / 251 [both "E" and "non E"] microphones have become rare and highly sought after jewels, commanding tens of thousands of dollars on the vintage market. You will find that the TELEFUNKEN Elektroakustik recreations exemplify the best qualities of the best examples of these legendary beasts, and while more expensive than most modern microphones, they are true to the heritage of their 40+ year old brethren.

Today TELEFUNKEN Elektroakustik has brought advancement to this classic system through the development of the CK-13™ capsule. While the CK-13 can be fit to any existing ELA M 250 /251 system it can also be found in the ELA M 251 T which is available through your favorite reseller via the "custom shop".

 

TELEFUNKEN Elektroakustik

About Manufacturer

TELEFUNKEN Elektroakustik of South Windsor, CT has been following the tradition of excellence and innovation set forth by the original TELEFUNKEN GmbH of Germany that began over 100 years ago.

TELEFUNKEN Elektroakustik's origins began in 2000 when owner Toni Fishman acquired the rights to the name and diamond logo for use in North America. The company began with the reverse engineering of a single microphone part: the ELA M 251 polar pattern selector. Mr. Fishman purchased an original Telefunken ELA M 251 for use in his recording studio, but when he received it he discovered that the polar pattern switch was no longer functional. Realizing that this was a common issue with the original units, the idea to recreate it was born.

The switch was reverse engineered and brought into production for other 251 owners with the same issue. With one part down, the goals were set high to successfully reverse engineer the entire microphone exactly as it was originally manufactured. The next two years were spent developing each and every part of the microphone right down to every detail. Numerous original documents and drafts from TELEFUNKEN and AKG were acquired, and coupled with thorough reverse engineering the ELA M 251 was brought back to life with meticulous accuracy.

As TELEFUNKEN moves forward, one foot is rooted in the rich history of the brand, and the other in new microphone innovations. TELEFUNKEN has evolved exponentially from a single pattern switch to one of the industry leaders in top quality microphones.

Specifications

Type

Condenser Pressure Gradient

Capsule

CK12 - 1" dual sided gold sputtered membrane

Frequency Range

20Hz / 20kHz

Polar Pattern

Cardioid, Omni and Figure 8

Sensitivity

approx 1.2 mvolts per dyne / cm sq

Impedance

200 ohms stock / 50 ohms switchable

SPL

138 dB

Non Linear Distortion

Less than or equal to 0.5% at 100 dyne / cm sq

Equivalent Noise

16 dB (a-weighted)

Tube Type

6072a General Electric JAN twin triode

Power

Dedicated Power Supply

Weight

20oz (567g), 34oz (960g) with swivel

Size

8 1/2" (216mm) length x 2" (51mm) diameter

Extras

Locking Flight Case, Lunchbox Style Power Supply, Wooden Microphone Box