[Elecraft] Bose noise canceling headphones

[W0MU Mike Fatchett]

I have seen rfi issues with the QC2 and the Heil noise cancelling headsets.
A couple of turns through a snap on fixed that.  Neither are great at random
shack noises but both seemed to work very well on fixed sounds like fans.  I
don't doubt that there are better solutions out there.  Bose has one heck of
a marketing budget!

The folks at Heil told me that they will have some new headphones/sets at
Dayton this year that are supposed to be better then the Bose and more rfi
proof then their previous headsets and more comfortable.

   


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-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Bill W4ZV
Sent: Thursday, March 19, 2009 3:40 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Bose noise canceling headphones




Bill W4ZV wrote:
> 
> If you **truly** want to block out ambient noise, there are much 
> better and less expensive solutions.  If I recall correctly the $300 
> (fair
> traded) Bose QC2 units only have ~10 dB of attenuation.  Bose doe not 
> spec their sound reduction because it really isn't so great.  I think 
> I found the 10 dB figure above from a 3rd party evaluation of the 
> original Bose QC.
> 

I found a review of the QC3 below:

"Over the entire frequency range, they block an average of about 15 dB of
noise"

http://www.headphoneinfo.com/content/Bost-QuietComfort3-Headphones-Review/Pe
rformance.htm
(scroll down to the last graph ~75% of the way down the page.

73,  Bill

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