Mejor anda a la segura, invierte un poco mas y te compras un Newman U 87 Ai.
http://www.neumann.com/?lang=en&id=current_microphones&cid=u87_description
No es el clasico, pero se le parece bastante. Datos técnicos:
Acoustical operating principle Pressure gradient transducer
Directional pattern Omnidirectional, cardioid, figure-8 plus
Frequency range 20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm 20/28/22 mV/Pa1)
Rated impedance 200 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR2) 26/23/25 dB1)
Equivalent noise level, A-weighted2) 15/12/14 dB-A1)
Signal-to-noise ratio, CCIR2) (rel. 94 dB SPL) 68/71/69 dB1)
Signal-to-noise ratio, A-weighted2) (rel. 94 dB SPL) 79/82/80 dB1)
Maximum SPL for THD 0.5%3) 117 dB (cardioid)
Maximum SPL for THD 0.5% with preattenuation3) 127 dB
Maximum output voltage 390 mV
Dynamic range of the microphone amplifier (A-weighted) 105 dB
Supply voltage (P48, IEC 61938) 48 V ± 4 V
Current consumption (P48, IEC 61938) 0.8 mA
Matching connectors XLR3F
Weight 500 g
Diameter 56 mm
Length 200 mm
Lo otro parecido seria un TLM103 de Newman
http://www.neumann.com/?lang=en&id=current_microphones&cid=tlm103_description
Datos Técnicos:
Acoustical operating principle Pressure gradient transducer
Directional pattern Cardioid
Frequency range 20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm 23 mV/Pa
Rated impedance 50 ohms
Rated load impedance 1 kohms
Equivalent noise level, CCIR1) 17.5 dB
Equivalent noise level, A-weighted1) 7 dB-A
Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL) 76.5 dB
Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL) 87 dB
Maximum SPL for THD 0.5%2) 138 dB
Maximum output voltage 13 dBu
Dynamic range of the microphone amplifier (A-weighted) 131 dB
Supply voltage (P48, IEC 61938) 48 V ± 4 V
Current consumption (P48, IEC 61938) 3 mA
Matching connector XLR3F
Weight approx. 450 g
Diameter 60 mm
Length 132 mm
Y si no dispones de tanto dinero, tendras que ver uno de estos...
http://www.behringer.com/assets/T-1_T-47_WebBrochure.pdf
Saludos.