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 -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Which-headphones-for-stereo-cw-work-tp5112813p5114484.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
