[Elecraft] K3 Which headphones for stereo cw work?

[Bill W4ZV]

Sam Morgan-3 wrote:
> 
> Besides sealing out noise passively
> 

For those interested in external isolation, I found a really neat website
which compares noise isolation by frequency range.  Select among 4
headphones you're interested in, choose Isolation Response and then click
Compare for a graph of isolation by freqluency:

http://www.headphone.com/learning-center/build-a-graph.php?graphID[0]=1743&graphID[1]=533&graphID[2]=753&graphID[3]=1753&graphType=6&buttonSelection=Compare+Headphones

This shows some significant differences in isolation versus frequency. 
Bose, Sennheiser, Sony and Etymotic models are included but Yamaha and
Extreme Isolation are not.  Low frequency noise is most important in my
shack due to amplifier fan noise but higher frequencies might be more
important for a multiop phone environment.

73,  Bill

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