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.


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.


ELA M 251T

TELEFUNKEN Elektroakustik introduces the new ELA M 251 T, a microphone featuring the newly developed CK13™ capsule. While based upon the classic ELA M 251 models, the ELA M 251 T adds a very modern twist. That twist is the implementation of Alloy 2213™ as the diaphragm membrane material for the CK13™ capsule. Alloy 2213™ is an amalgam of Titanium and Aluminum, which was originally developed for the aerospace industry.
The ELA M 251 T System comes complete with capsule, amplifier featuring a NOS Siemens ECC801S vacuum tube, power supply, and 4-year warranty. Included in the package is a standmount cable connector, ruggedly-built power supply, wooden microphone box, and a locking tweed flight case.


  • Modern sounding detail and tone 
  • Pronounced high end accuracy and low frequency definition 
  • Cardioid, Omni, and Figure 8 polar pattern selection 
  • Unique Alloy 2213™-sputtered CK13 capsule, made in USA 
  • Premium New Old Stock Siemens ECC801S vacuum tube 
  • Point-to-point wired in the USA true to the original design 
  • Includes American-made standmount cable and fully regulated power supply 

Technical Specifications

Type: Vacuum Tube Condenser
Polar Pattern: Cardioid, Omnidirectional, Figure-8
Frequency Range: 20 Hz – 20 kHz, ±3 dB
Power Source: External Power Supply
Capsule: TELEFUNKEN Elektroakustik CK13 – Edge Terminated Large Diaphragm
Tube: Siemens ECC801S NOS
Transformer: Haufe T14/1
Sensitivity: 17 mV/Pa, ±1 dB
THD at 1kHZ at 1Pa (Amplifier): < 0.2%
Output Impedance: 200 Ω
Maximum SPL (for 1% THD): 130 dB
S/N Ratio: 85 dBA
Self Noise (Amplifier): 9 dBA
Dimensions: 216 mm L x 50 mm Dia
Weight: 596 g
Included Accessories: Tube Mic Cable, Power Supply, Shock Mount, Wooden Box, Flight Case

Frequency Response

Configuration Options

ELA M 251T

Single microphone system 

Each system includes: 

  • ELA M 251T Microphone 
  • M 950E Power Supply 
  • M 850T Sommer Tube Microphone Cable – 10m
  • M 751 Rycote Shock Mount 
  • FC50 Locking Flight Case 
  • WB50 Wooden Microphone Box 

ELA M 251T Stereo Set

A frequency and gain matched pair of microphones with dual power supply 

Each system includes: 

  • (2x) Matched ELA M 251T Microphones 
  • M 950ES Power Supply 
  • (2x) M 850T Sommer Tube Microphone Cables – 10m
  • (2x) M 751 Rycote Shock Mounts 
  • FC50S Locking Flight Case 
  • (2x) WB50 Wooden Microphone Boxes 

These microphones are a welcome and worthy addition to our collection. I couldn’t be happier with our new mics.  They meet and even exceed the sonic quality and “vibe” of any vintage tube mic I’ve ever owned or use, and I don’t have to sift through a dozen or more ‘vintage’ mics to find one that actually sounds like it’s supposed to.”  

Bruce & Michael Seiferts

Similar Products

Live From the Lab

TELEFUNKEN provides these multitrack audio files for the sole purpose of allowing individuals an opportunity to utilize them for home studio use and for educational purposes only.

No commercial use is permitted.  Any commercial use or reuse is strictly forbidden.

By downloading any track hereunder the user agrees to properly attribute all copyrights and to display the following on any non-commercial reuse of the video and multitrack audio files as follows:

All audio files have been engineered and recorded by TELEFUNKEN Elektroakustik and are presented for educational and demonstrational purposes only.

Live From the Lab

The LIVE FROM THE LAB live music video series is recorded and filmed at TELEFUNKEN Elektroakustik’s facility in South Windsor, CT. Each session is tracked live exclusively with TELEFUNKEN microphones and features unique performances from a variety of local, regional, national, and international artists and ensembles.

The multitrack audio files from these sessions are available for free download via clickable links below the individual performance videos. All audio files are presented in .WAV format and were recorded at 24bit / 48KHz sample rate. They are clearly labeled in the same format with the source listed first (LEAD VOX, ACOUSTIC, PIANO), followed by the microphone used (C12, AR-51, etc) and can be downloaded and imported into your Digital Audio Workstation of choice.

For more additional content please visit livefromthelab.net