The large diaphragm multi pattern TF51 exhibits a smooth midrange and airy top end similar to the ELA M 251E and C12.



The large diaphragm multi pattern TF51 exhibits a smooth midrange and airy top end similar to the ELA M 251E and C12.



The TF51 is a fresh take on the “Austrian” microphone sound associated with the legendary TELEFUNKEN ELA M 251E and C12. The TF51 continues this legacy, exhibiting a smooth midrange and airy top end and capturing every nuance in pleasant detail. The TF51 is a reliable first choice for stand out vocals, acoustic instruments, and percussion. Similar to the 251E and C12, the TF51 features a CK12-style edge terminated capsule, 6072A vacuum tube, and custom-made Haufe transformer. The combination of these components provides a beautifully open and smooth sonic profile, with a certain level of articulation that can only be described as lifelike.


  • Airy and open top end, reminiscent of the ELA M 251E  
  • Balanced low end and natural midrange  
  • Cardioid, Omni, and Figure 8 polar pattern selection 
  • CK12-style capsule and German-made Haufe transformer 
  • TELEFUNKEN Elektroakustik 6072A vacuum tube 
  • Designed and hand assembled in the USA 
  • Recommended Applications: Vocals, Acoustic Guitar, Violin, Drum Overheads 

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: TK51 Edge Terminated Large Diaphragm
Tube: TELEFUNKEN Elektroakustik 6072A
Transformer: Haufe T31
Sensitivity: 19 mV/Pa, ±1 dB
THD at 1kHZ at 1Pa (Amplifier): < 0.4%
Output Impedance: < 300 Ω
Maximum SPL (for 1% THD): 128 dB
S/N Ratio: 86 dBA
Self Noise (Amplifier): 8 dBA
Dimensions: 200 mm L x 46 mm Dia
Weight: 615 g
Included Accessories: Tube Mic Cable, Power Supply, Shock Mount, Stand Mount, Mic Sleeve, Carrying Case

Frequency Response


Female Folk Vocal TF51
Male Soul RB Vocal TF51

Configuration Options


Large diaphragm three-pattern tube microphone system

Each system includes: 

  • TF51 Microphone 
  • M 903 Power Supply 
  • M 803 Tube Microphone Cable – 7m
  • ZC03 Zipper Case 
  • M 703 Shock Mount 
  • M 782 Stand Mount 
  • MS01 Microphone Sleeve 

TF51 Stereo Set

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

Each system includes: 

  • (2x) Matched TF51 Microphones 
  • M 901S Power Supply 
  • (2x) M 803 Tube Microphone Cables – 7m
  • FC03S Locking Flight Case 
  • (2x) M 703 Shock Mounts 
  • (2x) M 782 Stand Mounts 
  • (2x) MS01 Microphone Sleeves 

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