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Telefunken ELA-M 251 大振膜话筒8 h% c; m' N0 m e H3 j8 i0 ?
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' g( m; L9 x1 ^( t2 wThe 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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Developed 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.; L* \- X+ b9 O7 E. w. g
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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. ?- I2 K$ L) w3 u8 N9 ^
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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.+ Z( ?+ ~8 f) t( U4 n
+ K% h- [& r, ^9 lIn 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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Specifications:
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" | z" y2 V$ \8 \Type: condenser pressure gradient7 ^9 C* Y! ? }3 Y( S0 e- l
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Capsule: CK12( T5 R* \& r# {$ Z) p! ~
& e6 e- E8 F$ C' I% _ w$ _Frequency Range: 20Hz / 20kHz) Z/ L- ]- L. X" d+ p% j9 p9 C# z
. k0 }& V. ?3 @/ F- G9 q# P: HPolar Pattern: Cardioid and Omni' n7 S; c: _ p( W
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Sensitivity: approx 1.2 mvolts per dyne / cm sq9 q3 g8 H1 F) l
: R: [# w1 z5 L) }+ \4 [THD at 1kHz at 1Pa: <0.15%4 O ^4 ]& b- u7 O6 ]! [/ c
6 O. i0 w4 B P k% u" J* D& jOutput Impedance: <200 ohms% e1 q Y( _& b$ D/ ^
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Maximum SPL: 132 dB
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Non Linear Distortion: less than or equal to 0.5% at 100 dyne / cm sq
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/ I$ R8 ^# n T+ HSelf Noise: 7dBA
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& G* x4 o0 r( D2 b/ i3 {Tube Type: AC701
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! R/ S& r5 ]# ^6 j& y6 Q0 zPower Type: Dedicated American-made power supply with slow-ramping filament voltage
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Dimensions: 8 1/2" (216mm) length x 2" (51mm) diameter6 T. @# M7 j2 @$ ]. v! G, M' `% E
/ [2 Q S1 b4 u* pWeight: 20oz (567g), 34oz (960g) with swivel
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Supply Current: <1mA(4V) 100mA5 {; \* k/ p! q: n
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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
