A few years back (pre-Telinga and other smaller mic manufacturers who
have since developed into serious players), the Audio Engineering
Society rated the Sennheiser MKH series as the quietest mics
professionally manufactured. Period.
While they were not rated as the most sensitive (the trade-off), they
were quiet and transparent. Furthermore, at the time, they were
considered the most stable units for a wide range for field
applications that took into account weather (thermal conditions,
humidity, wind, etc.). Because of Sennheiser's careful QC during
manufacturing, you can take any set of mics (we typically use
different sets of MKH30/40s), set them up in a lab and the calibrate
to within .1 dB. My MKH 40 purchased in the late 80s calibrates to
that kind of spec with the two I bought in 2001 for a larger project.
It's that kind of reliability one wants and needs at the pro level,
especially if you are representing calibrated inputs.
When testing, though, you might want to use different technology,
like current lab equipment or a 722 because of the quiet preamps.
That may make a difference.
Bernie Krause
>Hi Rob,
>Thanks for giving this a listen. I am running MKH's through Rolls
>and into mic in of Sony RH10. The EM23's are going directly into mic
>in using only PIP. I put new batteries into the Rolls immediately
>before running the test.
>
>I have uploaded an un-normalized or decoded file of the MKH 40/30 and
>also the un-normalized file of the EM23's both recorded at the 28
>level. They are at the bottom of the group on the page at
>
>http://tinyurl.com/hx9nq
>
>One thing that confuses me is that I thought the MKH's were more
>sensative than the EM23's being rated at 25mV/Pa's as opposed to 10-
>11.5mV/Pa for the EM23. The un-normalized files argue against this.
>
>Thanks,
>Scott
>
>
>--- In Rob Danielson <>
>wrote:
>>
>> Hi Scott- We'll, something odd is going on. Is just the 40/30 pair
>> going through through the Rolls and the em-23 running on PIP or are
>> both running through the PB224? Sure the batteries are fresh? If
>both
>> pairs are going through the Rolls, can you upload the M-S 40-30 rec
>> level "28" files un-decoded and un-normalized? Rob D.
>>
>> At 11:07 PM +0000 8/31/06, scottsherk27 wrote:
>> >I recently began experimenting with a Sennheiser MKH 30-40 M/S rig.
>> >I've been running this through the Rolls PB224 and then into a Sony
>> >RH10 Hi-MD. I seem to be experiencing too much high-end noise,
>> >especially compared to what I'm used to with my pair of Telinga
>> >EM23's. I've posted some crude test recording on my site. I`ve
>> >recorded the same clock with both the EM23's and the MKH's with
>gain
>> >of 22 and 28 on the RH10. I only normalized the files. I would
>> >appreciate an assessment of this high-end noise. Here is the page:
>> >
>> >http://tinyurl.com/hx9nq
>> >
>> >Thanks,
>> >Scott
>> >
>> >
>> >
>> >
>> >
>> >"Microphones are not ears,
>> >Loudspeakers are not birds,
>> >A listening room is not nature."
>> >Klas Strandberg
>> >Yahoo! Groups Links
>> >
>> >
>> >
>> >
>>
>>
>> --
>> Rob Danielson
>> Peck School of the Arts
>> University of Wisconsin-Milwaukee
>> http://www.uwm.edu/~type/audio-art-tech-gallery/
>>
>
>
>
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
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