Descripción
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.
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








