Telefunken ELA M 251T
TELEFUNKEN Elektroakustik introduces the new ELA M 251T, a microphone featuring the newly developed CK-13™ capsule. 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. Alloy 2213™ is an amalgam of Titanium and Aluminum, which was originally developed for the aerospace industry.
Sonic Characteristic
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, the capsule that provides greater accuracy in the low frequency range by attaining a higher damping factor to the motion of the membrane. Alloy 2213™ is lighter than gold, and when combined with the edge terminated CK-12 system provides an “airy” and “delicate” representation of the upper frequencies. This affords the user a higher degree of detail in the recorded sound while still providing the depth of audio for which ELA M 251 microphones have been associated for decades.
Circuit Design
The TELEFUNKEN ELA M 251T includes an edge terminated, dual backplate CK13 capsule, a variation of the traditional CK12. The 251T is capable of cardioid, omnidirectional and bidirectional polar patterns, just like the ELA M 251E. The amplifier circuit features a premium New Old Stock ECC801S vacuum tube and a Haufe T14/1 output transformer, the same found in the 251E and C12.
Construction
Though the 251T shares the same basic vintage-accurate construction of the 251E, it is wrapped in a sleek sulfamate nickel-plated finish to reflect the proprietary capsule technology.
Accessories
Each ELA M 251T microphone comes complete with M 950T power supply, M 850T 25′ Sommer tube microphone cable, Rycote shockmount, FC50 locking flight case and WB50 wooden microphone box.
Included Accessories
Each ELA M 251E Stereo Set comes complete with a dual M950ES power supply, two M850E 25’ dual-shielded Somner tube microphone cables, two WB50 wooden microphone boxes and a FC50S locking flight case.
Technical Specifications
- Type: Pressure Gradient Condenser
- Capsule: CK13 – 25mm Dual Sided Alloy 2213 Sputtered Membrane
- Tube Type: TELEFUNKEN ECC801S (NOS)
- Transformer: Haufe T14/1
- Polar Pattern: Cardioid, Omnidirectional, and Bidirectional
- Frequency Range: 20Hz – 20kHz, ± 3 dB
- 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: 87dBA
- Self Noise (Amplifier): 7dBA
- Dimensions: 216 mm L x 50 mm Dia
- Weight: 596 g
- Current Draw from Mains: 80 mA
- Power Supply: M 950T – 7 Pin Female XLR Input, 3 Pin Male XLR Output
- Cable: M 850T – 25 ft Sommer Cable, Vintage Compatible 6 Pin Female Stand Mount, 7 Pin Male XLR
- Wooden Box: WB50
- Flight Case: FC50 – Vintage Style Locking Combination Flight Case, FC50S for Stereo Set