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Re: MM-BSM-9

Subject: Re: MM-BSM-9
From: nick_felmicamps
Date: Thu Jun 25, 2015 8:15 am ((PDT))
Hi Charles,=0D
=0D
We make a clip on mic using the Primo EM172 capsules, its called the Clippy=
 EM172 and is available in mono and stereo versions. The capsule is in a bl=
ack aluminium housing, and it comes with removable clips. We also stock sui=
table windshields and spare clips. The housings are available separately if=
 you wish to assemble your own.=0D
=0D
Nick Roast.  FEL Communications Ltd.=0D
=0D
Clippy EM172 Microphone - micbooster.com http://micbooster.com/primo-microp=
hone-capsules/65-clippy-em172-microphone.html =0D
 =0D
 http://micbooster.com/primo-microphone-capsules/65-clippy-em172-microphone=
.html =0D
 =0D
 Clippy EM172 Microphone - micbooster.com http://micbooster.com/primo-micro=
phone-capsules/65-clippy-em172-microphone.html New A clip-on microphone usi=
ng the superb low noise, high sensitivity Primo EM172 capsule.  Beautiful b=
lack anodized aluminium enclosure, metal grid, toug...=0D
 =0D
 =0D
 =0D
 View on micbooster.com http://micbooster.com/primo-microphone-capsules/65-=
clippy-em172-microphone.html =0D
 Preview by Yahoo =0D
 =0D
 =0D
  =0D
=0D
 =0D
=0D
---In  <> wrote :=0D
=0D
 Thanks, John, that's helpful. It's really apparent just how different a "g=
ood mic" is for nature recording as opposed to general field recording. Imp=
ortant lesson learned. =0D
 =0D
=0D
 I gather EM172 capsules are what the M10 uses internally (according to som=
ething I saw online where someone disassembled one). I've been very happy w=
ith it, although as many have noted the soundstage is quite narrow. =0D
 =0D
=0D
 Considering the popularity of the EM172 capsules, I'm surprised no one mak=
es a pair of inexpensive mics using them. Or if they have, I'm not seeing t=
hem anywhere.=0D
=0D
- Charles=0D
 =0D
 On Jun 24, 2015, at 10:33 AM, 'John Crockett'   [=
naturerecordists] < naturerecordists=
@yahoogroups.com> wrote:=0D
=0D
=0D
   Hi Charles,=0D
 =0D
 You are not hearing preamp noise, it is all coming from the microphones.=
=0D
 The PCM-M10 preamps are very quiet for a small recorder and are only=0D
 adding about 0.02 dB of noise to the mics. The BSM-9 have (published) self=
=0D
 noise of 36 dB compared to 17 dB for the PCM-M10 mic capsules. That's=0D
 almost 9 times more noise. Increasing sensitivity would not help, because=
=0D
 the preamp noise is already inaudible and it can't get more inaudible.=0D
 =0D
 If you want quiet and inexpensive, I'd suggest building a small and simple=
=0D
 boundary array, with EM172 mic capsules, like Vicki Powys' foam block=0D
 SASS. 13 dB self noise, and the signal-to-noise ration is improved several=
=0D
 decibels by the boundary. Very satisfying results.=0D
 =0D
 Lots of fun info on her site=0D
 =0D
 http://www.caperteebirder.com/index.php?p=3D1_17_recording-gear-1 http://w=
ww.caperteebirder.com/index.php?p=3D1_17_recording-gear-1=0D
 =0D
 best wishes,=0D
 =0D
 John=0D
 =0D
 > My thought was if it increases the sensitivity=0D
 > or output I'll be relying less on the internal preamp and thus have less=
=0D
 > noise, but feel free to tell me why I'm wrong.=0D
 >=0D
 > - Charles=0D
 >=0D
 =0D
 John Crockett=0D
 =0D
 Let us live in harmony with Earth=0D
 And all creatures,=0D
 That our lives may be a blessing.=0D
 =0D
=0D
=0D
=0D
=0D
=0D





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