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Telefunken ELA M 251T Stereo Set – Large-diaphragm Tube Condenser Microphones

2,263,981 (Incl. GST) 2,150,782 (Incl. GST)

  • Large-diaphragm Tube Condenser Mics with Cardioid, Omni, and Figure-8 polar patterns
  • Elektroakustik CK13 Capsule
  • Haufe T14/1 Transformer
  • NOS Siemens ECC801S Tube
  • 2x Tube Mic Cables, Dua-Channel Power Supply, 2x Shock Mounts, 2x Wooden Boxes, Flight Case

Available on backorder

SKU: C47JI Category:


Telefunken ELA M 251T Stereo Set: TELEFUNKEN Elektroakustik is proud to offer matched stereo sets of their ELA M 251T large diaphragm tube microphone, featuring a custom dual power supply capable of powering both microphones at one time, and a special locking flight case that will carry both sets of microphones, cables, wooden boxes, and the dual power supply.

While based upon the classic ELA M 251 models, the ELA M 251T adds a very modern twist. That twist is the implementation of Alloy 2213 as the diaphragm membrane material for the CK-13 capsule.

Traditionally gold has been sputtered onto Mylar for the diaphragms of the historic CK-12 capsule. By employing Alloy 2213, which is far more rigid than gold, TELEFUNKEN Elektroakustik has developed a capsule that provides greater accuracy in the low-frequency ranges of the audio spectrum by attaining a higher damping factor to the motion of the membrane.

The ELA M 251T also sheds the classic mint green body color of the ELA M 250, 250E, 251 251E & ELA M 270 in favor of a sleek sulfamate nickel-plated finish to reflect the proprietary capsule technology.

Every component in each of the two TELEFUNKEN ELA M 251T microphones is hand-selected, allowing as close a match as is possible between each system. Capsules are tuned to each other; transformers and tubes are tested for matched gain and frequency response. These sets offer the user the knowledge and comfort that the tools they are using will give identical responses for their most important stereo recording.

Accessories Included with Telefunken ELA M 251T Stereo Set

Every Telefunken ELA M 251T Stereo Set ships with two microphones, an FC250S locking combination flight case, two M 750 shock mounts, an American-built dual-channel M 950ES power supply, two M 850E cables, and two WB50 wooden boxes.

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: NOS Siemens ECC801S
  • Transformer: Haufe T14/1
  • Sensitivity: 11.5 mV/Pa, ±1 dB
  • THD at 1kHZ at 1Pa (Amplifier): < 0.15%
  • Output Impedance: 200 Ω
  • Maximum SPL (for 1% THD): 132 dB
  • S/N Ratio: 87 dBA
  • Self Noise (Amplifier): 7 dBA
  • Dimensions: 216 mm L x 50 mm Dia
  • Weight: 596 g
  • Included Accessories: 2x Tube Mic Cables, Dua-Channel Power Supply, 2x Shock Mounts, 2x Wooden Boxes, Flight Case

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Additional information

Weight0.596 kg
Dimensions1.968 × 1.968 × 8.503 in
Microphone Type

Vacuum Tube Condenser

Polar Pattern

Cardioid, Figure-8, Omnidirectional

Diaphragm Size

1" (25.4mm)

Frequency Response

20Hz – 20kHz

Maximum Peak SPL

132dB SPL (1% THD)

Output Load Impedance

200 Ω


NOS Siemens ECC801S


CK13 – Edge Terminated Large Diaphragm


Haufe T14/1


11.5 mV/Pa

Signal-to-Noise Ratio

87 dBA

Self Noise

7 dBA

Power Supply

External M 950E Power Supply






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