Isolation headphones

[dw-4]

I think I've tried everything.
I have the David Clark and another Sound studio set of over-the-ear
headphones that are rated at around 24db isolation.  Both of them are
not sufficient for my shack environment when its noisy.

I think the best I have are custom molded inner-ear units that I had
made up at a motorcycle rally.
There was a gal there custom making them for people.
These are the kind you see people use on stage standing in front of
killowatt guitar amps.  ;~]

To get the same but on the cheep, I got a pair of el-cheep-0 KOSS inner
ear units with the black rubber foam.  Take the foam off and take a pair
of sleep ear-plugs ( the kind that you shrink up and they expand in your
ear).  Take a hot needle and boar a hole through the center.  Super glue
them onto the ear-phones.

Best isolation I've ever had and cost is less than $25 bucks!
Go figure :)

N1BBR
--
 [hidden email]

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[W6ODJ]

I'll repeat this in this thread:

I hope people do not make the mistake of using in-the-ear earbuds with ham radios, even the K3.  These in-the-ear phones like the etymotic or the shure have to be put pretty deep into the ear canal to seal and provide isolation.  They are wonderful for hi-fi.  I use a pair by Shure to listen to Brahms on airplanes.  BUT, they take at least a few seconds to extract from your ears.  If, as has been reported on this reflector several times, the radio mis-functions and puts out a very loud audio signal, your ears will be fried before you can react.  

DON'T DO IT!!!!

Oliver
W6ODJ



On 8 Feb 2010, at 6:20 PM, dw wrote:

> I think I've tried everything.
> I have the David Clark and another Sound studio set of over-the-ear
> headphones that are rated at around 24db isolation.  Both of them are
> not sufficient for my shack environment when its noisy.
>
> I think the best I have are custom molded inner-ear units that I had
> made up at a motorcycle rally.
> There was a gal there custom making them for people.
> These are the kind you see people use on stage standing in front of
> killowatt guitar amps.  ;~]
>
> To get the same but on the cheep, I got a pair of el-cheep-0 KOSS inner
> ear units with the black rubber foam.  Take the foam off and take a pair
> of sleep ear-plugs ( the kind that you shrink up and they expand in your
> ear).  Take a hot needle and boar a hole through the center.  Super glue
> them onto the ear-phones.
>
> Best isolation I've ever had and cost is less than $25 bucks!
> Go figure :)
>
> N1BBR
> --
> [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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