[Elecraft] Bose noise canceling headphones

[Greg - AB7R]

I use the Heil quiet phones plus headset and have never had any RFI issues running 
a KW.  And they are amazing at blocking noise.  I had an AL1500 that was surely on 
the "loud" side but when I put these quiet phones on you hardly notice it's there.

-------------------------
73,
Greg - AB7R
Whidbey Island WA
NA-065


On Thu Mar 19 14:51 , "W0MU Mike Fatchett"  sent:

>
>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
>[elecraft-bounces at mailman.qth.net','','','')">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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>Sent from the Elecraft mailing list archive at Nabble.com.
>
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