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Re: Esoteric Mic Builds: Multi-style Capsule SASS

Subject: Re: Esoteric Mic Builds: Multi-style Capsule SASS
From: "vickipowys" vpowys
Date: Sun Feb 25, 2018 3:36 pm ((PST))

You haven't mentioned what recorder you will use, and if it has PIP.  
Generally I think 2 capsules each side in a SASS is about as much as 
the better recorders can power.  The ultrasonic EM258s sound 
interesting!  I wonder how their sound compares with EM172s when used 
for general recording, birdsong etc.?

Vicki Powys

On 26/02/2018, at 7:50 AM,  [naturerecordists] 

> It's looking like I might have a chance to travel to Austin, Texas, 
> some time this summer. There are some great opportunities to record 
> Mexican freetail bats while I'm there (Congress St. Bridge, Bee 
> Caves, etc.) but I don't have much in the way of ultrasonic-capable 
> microphones.

> We only have one very rare species of bat where I live here in 
> Hawaii, so I haven't had much of a need for ultrasonic mics. I'm 
> more than willing to build some, but I don't want to pour a lot of 
> effort into a mic I'm going to use for a week, and then not need 
> again for years, if ever.

> While I was looking at some of the capsules Nick Roast has on micbooster.=
> , a thought occurred to me: I've got all the bits and pieces to 
> build a dual-capsule EM-172 SASS similar to the one Vicki Powys 
> describes on her web site: https://caperteebirder. com/?page_id=3D284

> If I picked up four EM-258 capsules and either wired them in with 
> the EM-172 caps, or ran a completely separate set of wires, I could 
> potentially build a dual-range SASS (20Hz-20kHz on the EM-172s 
> and ???-96kHz on the EM-258s). The EM-258 capsules wouldn't raise 
> the cost of the build by that much, and in the end I'd still have an 
> SASS I could use in my largely bat-free environment here once I'm 
> back from Austin. This would also help solve the issue of luggage 
> space since I'm going to Austin for a conference and really can't 
> pack gobs of recording gear for the trip.

> My thought is to cluster four capsules for each of the two wings on 
> the SASS: two EM-172s and two EM-258s. I haven't worked through the 
> packing densities in CAD, but I should be able to keep everything 
> pretty close together.
>  Does this seem reasonable? Or am I barking up the wrong tree with 
> this idea?
> Thanks,
> Tom

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