Jim, I'd worry about sudden surges of high-intensity audio. They happen even in the best families. Your ears could be badly damaged before you could yank the Etymotics out. I'd never, ever use in-ear headphones in a ham-rig setting.
Oliver W6ODJ On 25 Jan. 2013, at 20:40 PM, Jim Brown <j...@audiosystemsgroup.com> wrote: > On 12/25/2013 8:22 PM, Randy Farmer wrote: >> The Radiosport RS 20 headphones are the way to go. They're not cheap, but >> they really do the job. They have NO electronic circuitry to give RFI >> problems, just 24 dB of noise reduction due to their excellent acoustic >> isolation. > > I tried them, and found them to be VERY VERY uncomfortable, to the point of > being instruments of torture. I'm a contester, and often am in the chair for > 20-30 hours in a weekend. I couldn't wear the Radiosport cans for an hour. > > I'd rate the acoustic seal of CM500s comparable to Sony MDR7506 / MDR-V6, all > of which I've owned and like a lot. In other words, if you're not happy with > the MDR-V6, you won't be happy with the CM500. :) I have heard that east > coast contesters love the Bose noise cancelling headphones, but I've never > heard them. I did try a pair of Sennheiser noise cancelling headphones > almost 20 years ago, and they seemed to work, but I wasn't being critical, > and that was 20 years ago. :) > > The best, and most comfortable, noise isolating headphones I know of are the > Etymotic Research ER4-series in-ear earsets, I own two pairs, and wore out > one of the cables. They come with 3-4 generic ear fittings, and I found one > of them to work well for me -- good isolation and comfort. Cost was about > $200 eight years ago when I bought them. The greatest isolation is achieved > with custom ear molds, which you buy from an audiologist who fits them to > your ear canal. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
