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Re: an interesting microphone deal

Subject: Re: an interesting microphone deal
From: "Curt Olson" flipov411
Date: Mon Aug 15, 2011 7:29 am ((PDT))
Thank you for posting the nice sample, John.

After some serious comparison studies with my AT3032s and AT4022s  
earlier this summer, I'm beginning to strongly prefer the trusty old  
WL-183s almost anywhere that doesn't require ultimate low noise specs,  
which I'm also beginning to realize is almost everywhere if you're  
careful.

Question for you, Mike: You mentioned somewhere a while back that the  
Primo 172 capsules showed an increase in sensitivity with higher PIP  
voltages (like from a 9v battery box vs the 3v PIP from the Sony D50.  
I don't know how to make those measurements, but my experience seemed  
to bear that out; they  seemed much more stable. So my question is...  
do you know if this is also true with the 183/391s? Anything to be  
gained by running these Shure capsules off a 9v battery box?

Thanks in advance,

Curt


Mike Rooke wrote:

> They are rather good, I blogged about the blimp boundary setup here:-
> http://www.urlme.net/blog/?p=1733
>
> Ive also used two of the capsules inside silicone ears fitting to  
> the same
> blimp. -tree not required.
>
> http://www.urlme.net/blog/?p=1754
>
> The pinna accept the shure capsules or primo - I also investigated  
> dynamic mics modified with pinna, the ear amplification was present  
> but the low end suffered too much due to occlusion of the mics rear  
> ports - not much use in the field compared to the unmodified dynamic.
>
> more on the latter comment later Ron...
>
> -M
>
>
>
> --- In  "John Carroll"  
> <> wrote:
>>
>> Just a quick addition to the previous post, these mics (Shure MX391/ 
>> O)
>> work fine on the approximately 3V PIP supplied by the Sony D50.   The
>> original connectors were removed and both mics were wired directly  
>> to a
>> 3.5mm stereo plug.  The published specs are confusing.  When I first
>> read the specs I thought they required phantom power, but the mics  
>> alone
>> (without the pre-amp that they are normally used with) work well on  
>> PIP.
>> Thanks to John Hartog for setting me straight on this point.   -jc
>>
>> --- In  "John Carroll"
>> <carrolljohnl@> wrote:
>>>
>>> For those interested in the Shure MX391/O mics, here is a  
>>> recording of
>> an evening frog chorus I made last night.   As Mike said, the MX391's
>> are well balanced and they're easy to modify for PIP.
>>>
>>> Coupled with a Sony D50, a strap, a paper clip (to hang the  
>>> recorder)
>> and some velcro, they make a nice, very portable rig for "tree ears"
>> type recording (pic on SoundCloud).
>>>
>>> http://soundcloud.com/dismalhiker/aug-13-11-frog-chorus-ouachita- 
>>> pond
>>>
>>> John







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