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Telefunken ELA-M 251 大振膜话筒
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The TELEFUNKEN ELA M 251 amplifier circuit was originally built to satisfy the standardized requirements of the German and Austrian national broadcast systems after World War II. Utilizing a TELEFUNKEN AC701 vacuum tube, a CK12 capsule provided by AKG Acoustics GmbH, and a Haufe made T14:1 ratio output transformer, the ELA M 251 has achieved legendary stature in the modern recording industry.
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7 Y3 n1 S7 Z$ i! d' R1 FDeveloped specifically for microphone applications, the AC701 is a sub-miniature triode vacuum tube that produces a very rich and opulent tone. Built from a glass enclosure, its characteristics include a very low self-noise floor, a low degree of microphonics, and a propensity for an exceptionally long life (so long as the voltages provided by the power supply were correct and stable) which meant far less maintenance and consistent results.
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Today, prime examples of vintage ELA M 250 / 251 [both "E" and "non E"] microphones have become rare and highly sought after jewels, commanding tens of thousands of dollars on the vintage market. TELEFUNKEN Elektroakustik&＃39;s historic recreations of the ELA M 251 exemplify the best qualities of the finest specimens of these legendary beasts, and while more expensive than most modern microphones, they are true to the heritage of their 50+ year old brethren.
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The new TELEFUNKEN ELA M 251 includes an edge terminated, dual backplate CK12 capsule capable of cardioid, omnidirectional, and biirectional polar patterns and a European made Haufe 14:1 ratio output transformer (the same design found in the AKG Acoustics GmbH C-12). Each reissue is 100% true in every detail to the original [the parts are interchangeable with the 50+ year old originals], and will deliver the same sonically opulent response that made the ELA M 251 one of the world&＃39;s most sought after recording tools.
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In the Box: ELA M 251 microphone, M950 power supply, M850 25&＃39; quad-shielded Accusound ACX-7 tube microphone cable, M750 elastic shock mount, FC50 locking flight case and WB50 wooden microphone box.
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# D! d% Z1 t+ Y( L/ v# T( mSpecifications:7 |& W+ k' t/ z3 ~/ }
: i9 W, G+ P. }# YType: condenser pressure gradient4 z3 L% Q+ l/ S x' z. Z6 ?0 l- N; p
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Capsule: CK12$ A. E8 \0 `4 h7 F3 n
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Frequency Range: 20Hz / 20kHz
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Polar Pattern: Cardioid and Omni' @) @* \3 Q7 y+ a
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Sensitivity: approx 1.2 mvolts per dyne / cm sq5 q- g- d1 l2 U* X6 q9 D7 m$ h
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Output Impedance: <200 ohms% g# K+ O/ ]& ?
# K) q$ T8 d: X7 r3 z9 {Maximum SPL: 132 dB) I7 W+ b9 O- a6 ~/ d2 G( G
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Non Linear Distortion: less than or equal to 0.5% at 100 dyne / cm sq
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Tube Type: AC701
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& ^! [+ e; t+ s2 r3 {3 s! vPower Type: Dedicated American-made power supply with slow-ramping filament voltage( \" l- A* @. d2 S$ x
* F' u$ T$ c1 F) S& Z; P' HDimensions: 8 1/2" (216mm) length x 2" (51mm) diameter) ?+ e6 t( `+ Y7 c7 |& {
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Weight: 20oz (567g), 34oz (960g) with swivel
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Connected Via: Large Tuchel/Historic stand mount swivel, XLR-3 (M) output |
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发表于 2009-6-16 15:22:05
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