Thanks, Klas! I was about to write to ask if anyone has compared the
Sony ECMM-55B to some of the mics we are discussing, incuding yours.
Now I can measure it myself. But has anyone done listening comparisons?
published specs:
Model Details:
With a black anodized finish and a frequency response tailored for
enhanced presence and improved voice quality, Sony's ECM55B
Omni-Directional Electret Condenser Lavalier Microphone is well suited
for a wide range of applications. The microphone features a two-way
powering system, meaning it will work through an AA-size battery or an
external power supply. And the head of the mic weighs only 6.5 grams
(0.23 ounces).
Features:
Complete with in-line battery unit for two-way powering.
Frequency Response: 30 to 18,000 Hz.
Directivity: OMNI.
Output connector: XLR-3-12C type.
Sensitivity (0dB=3D1V/Pa, at 1 kHz): -52.0 dB =B1 2 dB.
Dynamic Range: 98 dB.
Signal-to-Noise Ratio (A weighted, 1 kHz, 1 Pa.): 66 dB.
Wind Noise (w/wind screen): 40 dB SPL.
Maximum Input Sound Pressure Level: 126 dB SPL.
Battery Life: Approx. 5000 hours.
Specifications:
Capsule type - Electret condenser
Frequency response - 30-18,000Hz
Directivity - OMNI
Microphone cable - 3m
Output connector - XLR-3-12C TYPE
Sensitivity (0dB=3D1V/Pa, at 1kHz) -52.0dB =B1 2dB
Output impedance at 1 kHz - 1001/2 =B1 20% (Balanced)
Dynamic Range - 98dB
Signal to noise ratio (A weighted,1kHz,1Pa.) - 66dB
Wind Noise (w/wind screen) - 40dB SPL
Induction noise from ext. magnetic field - < 5dB SPL/1 x 10e 7 T
Maximum input sound pressure level - 126dB SPL
Power supply
Battery - SUM-3(NS) (1.5V)
Battery Life - Approx 5,000H
Ext. Power - DC48V
Inherent noise (0dB SPL=3D20=B5Pa.) - 28dB SPL
Additional Detailed Information:
Product Highlights
Frequency response tailored for enhanced presence and improved voice
quality in lavalier applications
2-way powering-AA-size battery or external power supply
Black Finish
Complete with in-line battery unit for 2-way powering
Thanks,
Lou
Lou Judson =95 Intuitive Audio
415-883-2689
On Sep 4, 2005, at 6:16 AM, Klas Strandberg wrote:
> You expose the microphone to a sound pressure of 94 db and set the
> instrument to zero db. (Reference level) Then you switch off the 94 db
> and
> measure the remaining noise through a specified A-weighted filter built
> into the voltmeter.
> You can also connect a MKH20 and set the self noise level at 10 db(A),
> Then
> you compare with your own microphone.
>
> Klas.
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