Another high end option you might want to look into is one of the Etymotic Research models.
http://www.etymotic.com/ephp/er4.aspx I have a pair of ER4S's that I have used for years with iPods for air travel. It does wonders to passively attenuate crying babies, etc., and the frequency response is outstanding. A lot of audiophiles like these earbuds. While I haven't built my KX1 yet (just purchased it at the Santa Barbara ARRL gathering last weekend from the Elecraft table), I plan on using these with my KX1 once I have completed building it. I think the ER4P's might be the way to go if purchasing specifically for the KX1, since it has a 10 db gain over the regular ER4S's. You can click on the link on the right that says "Which ER4 is Right for You?" to read more about the differences. I see the company now has various active noise canceling earbuds as well now, so that may be another option to look into. I have no affiliation with Etymotic Research other than being a very satisfied customer. ______________________________________________________________ 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