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Re: noise related to mic powering...

Subject: Re: noise related to mic powering...
From: "David La Puma" woodcreeper
Date: Wed Mar 21, 2007 11:50 am ((PDT))
what does that mean?

On 3/21/07, Klas Strandberg <> wrote:
>
>   The ME series have a built in step-up voltage converter.
>
> Klas.
>
>
> At 14:37 2007-03-21, you wrote:
> >Hi,
> > I just bought two Sennheiser K6/ME66 with the hope to use them on
> >small recorders lacking phantom power (HiMD, Kork MR-1) or with bad
> >phantom (MicroTrack 2496). Unfortunately I had a bad surprise: when
> >powered by phantom the K6/ME66 works fine, but when powered by its
> >internal battery his noise increases above 8-10 kHz by about 12 dB
> >and a strong and large peak of noise (36dB higher than the
> >background) appears in the range 30-40 kHz. I have two K6/ME66, one
> >with peak at 32kHz, the other with peak at 37kHz. I exchanged the
> >batteries with no differencies. This makes them completely unusable
> >at 96 kHz and also at 48 kHz the noise increase is well appreciable
> >when running on internal batteries.
> >I'm VERY disappointed by this. I checked an old K6/ME6 (more than 15
> >years old) and it has a similar peak but narrower and weaker with no
> >background increase; I also noted that both noise were higher in the
> >old model (something like 4-5 dB).
> >
> >Now I'd like to know if somebody else has experienced the same
> >problem with Sennheiser or with other brands.
> >
> >Gianni
> >
> >Gianni
> >----------------------------------------------------------
> >Gianni Pavan
> >Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
> >Universita' degli Studi di Pavia, Via Taramelli 24, 27100 PAVIA, ITALIA
> >Phone +39-0382-987874 Fax +39-02-700-32921
> >Email  <gpavan%40cibra.unipv.it>,
>  <gianni.pavan%40unipv.it>
> >Web http://www.unipv.it/cibra
> >----------------------------------------------------------
> >CIBRA organizes the XXI IBAC Congress, Pavia, 15-18 September 2007
> >http://www.unipv.it/cibra/xxi_ibac.html
> >----------------------------------------------------------
> >
> >
> >
> >
> >
> >--
> >No virus found in this outgoing message.
> >Checked by AVG Free Edition.
> >Version: 7.5.446 / Virus Database: 268.18.15/728 - Release Date:
> >20/03/2007 8.07
> >
> >
> >
> >
> >"Microphones are not ears,
> >Loudspeakers are not birds,
> >A listening room is not nature."
> >Klas Strandberg
> >Yahoo! Groups Links
> >
> >
> >
>
> Telinga Microphones, Botarbo,
> S-748 96 Tobo, Sweden.
> Phone & fax int + 295 310 01
> email:  <telinga%40bahnhof.se>
> website: www.telinga.com
>
>
>
>
>



--
David A. La Puma
Ph.D. Candidate
Dept. of Ecology, Evolution, & Natural Resources
Plant Physiology Building
1 College Farm Road
Rutgers University
New Brunswick, NJ  08901-1582

Phone: 732-932-3313
email 1: 
email 2: 

lab website: http://rci.rutgers.edu/~jlockwoo
personal website: http://www.woodcreeper.com
photo website: http://www.flickr.com/photos/woodcreeper







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