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Telefunken ELA-M 251 大振膜话筒5 S5 J$ }5 R+ O. `+ o/ F3 _
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3 V9 e" L5 ] A4 b! c4 @" IThe 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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! \" `' A, _6 \# 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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, B4 Q K, u- Z8 B8 c3 S; W) PThe 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. |, C/ i8 t' u9 e3 [
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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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: l( g8 N4 {$ vSpecifications:! p1 I$ s! p) T( X* T" f
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Type: condenser pressure gradient1 q& v& k, W$ g8 ^' O- n0 o: W4 f
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Capsule: CK12
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5 L: S3 ]1 g7 a, f! x9 r$ WFrequency Range: 20Hz / 20kHz1 ]1 V7 G, F5 D; h% x6 {2 R ?
5 e! [+ S2 r& D7 H5 |; V, uPolar Pattern: Cardioid and Omni( n8 S7 w6 A) Q1 M4 o: a9 n1 D
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Sensitivity: approx 1.2 mvolts per dyne / cm sq2 |) s4 r8 y, R* x5 W4 r( q4 _
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THD at 1kHz at 1Pa: <0.15%
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4 g* i' T( \0 q/ h$ l0 x' x2 i1 QOutput Impedance: <200 ohms+ c! f7 m0 E. }: E5 N, z
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Maximum SPL: 132 dB1 n3 U+ ~" M7 j
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Non Linear Distortion: less than or equal to 0.5% at 100 dyne / cm sq% c% I) g! D. w. Z% q- a) x
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Self Noise: 7dBA/ P9 w- ^" o1 d5 O; J
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Tube Type: AC701$ p" t) ?/ E9 r1 w* n% Z1 V
2 b/ r) b' H: X, APower Type: Dedicated American-made power supply with slow-ramping filament voltage
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- L/ s# t& ?: @% E' f \Dimensions: 8 1/2" (216mm) length x 2" (51mm) diameter
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Weight: 20oz (567g), 34oz (960g) with swivel
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Supply Current: <1mA(4V) 100mA! v8 \! N4 C5 @6 D9 |
! W% n% d2 X) m qConnected 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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