Very Efficient Ear Buds
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I just heard about some ear buds which are quite efficient. They use multiple drivers for each frequency ranges.
Here is a link to a description of them: <http://news.cnet.com/8301-13645_3-20005384-47.html> More here: <http://www.jhaudio.com/store/> I think it would be fun to test them in the field. 73, Kevin. KD5ONS ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Yep,
The price is also very reasonable, just ordered mine ;-) Kevin Rock wrote: > I just heard about some ear buds which are quite efficient. They use multiple drivers for each frequency ranges. > > Here is a link to a description of them: > <http://news.cnet.com/8301-13645_3-20005384-47.html> > > More here: > <http://www.jhaudio.com/store/> > > I think it would be fun to test them in the field. > 73, > Kevin. KD5ONS > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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I ordered two pair. One for use with my drums in my basement. The other as
part of my home-brew sonic jewelry cleaner and freezer defroster! And to think, Guns 'n Roses only use the to HEAR THEMSELVES!!! What a waste. Terry, W0FM -----Original Message----- From: Tony Morgan [mailto:[hidden email]] Sent: Wednesday, July 14, 2010 9:28 PM To: Elecraft Subject: Re: [Elecraft] Very Efficient Ear Buds Yep, The price is also very reasonable, just ordered mine ;-) Kevin Rock wrote: > I just heard about some ear buds which are quite efficient. They use multiple drivers for each frequency ranges. > > Here is a link to a description of them: > <http://news.cnet.com/8301-13645_3-20005384-47.html> > > More here: > <http://www.jhaudio.com/store/> > > I think it would be fun to test them in the field. > 73, > Kevin. KD5ONS > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by w7go
On 7/14/2010 7:27 PM, Tony Morgan wrote:
>> <http://www.jhaudio.com/store/> > Yep, > The price is also very reasonable, just ordered mine ;-) I read the ad. Twice. I read your message. Twice. The "smiley" is not the sign of a contented customer, I would presume! $1100 plus! My K2 cost just a few bucks more than that. I'll continue to use the old WW-II earphones (from a B-17 ?) with my radios, thank you! :-) -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Earbuds that completely seal the ear canal scare me. Has earbud transducer
technology advanced to the point where the transducer's cut off from the source below a reasonable safety level (roughly 100 dBSPL)? Over the years, I've had many mistaken disasters when plugging in closed-ear headphones into dangerously loud sources. Sometimes my reflexes were fast -- other times not. I cannot imagine the damage I would have caused with earbuds that fit perfectly into the ear canal. As my teen-aged daughters go through the iPod craze, earbuds of any type have been off limits. We only allow them to wear unsealed, on-the-ear headphones. Paul, W9AC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Phil Kane-2
On Thu, 15 Jul 2010 11:47:53 -0700, Phil Kane wrote:
>$1100 plus! My K2 cost just a few bucks more than that. If you want really good in-ear earphones, look at offerings by Etymotic Research and Shure. Both are widely used by professionals. http://www.etymotic.com/ephp/er4.aspx http://store.shure.com/store/shure/en_US/list/categoryID.12165500 I own an ER4S and an ER4P, and a three Shure models that precede those listed on their webpage. I'm happy with all but the lowest cost Shures. The Shure products are widely available in the retail distribution world. I think that Etymotic also has dealers, and the dealers may offer substantial discounts. All of these pro products work fine with the ear-fittings that come in the box, but can be fitted with earmolds. You need to get fitted by an audiologist. Whether an earmold helps, and how much it helps, depends on everyone's individual ear. It's sort of like shoes. :) One of the major advantages of these in-ear products is superior isolation from room sound. 40dB is typical of the best, and custom earmolds tend improve on that. Again, depending on your ears, they may also improve comfort. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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K9YC wrote:
> If you want really good in-ear earphones, look at offerings > by Etymotic Research and Shure. Both are widely used by > professionals. > http://www.etymotic.com/ephp/er4.aspx > > http://store.shure.com/store/shure/en_US/list/categoryID.12165500 > > I own an ER4S and an ER4P, and a three Shure models that > precede those listed on their webpage. I'm happy with all but > the lowest cost Shures. > > The Shure products are widely available in the retail > distribution world. I think that Etymotic also has dealers, > and the dealers may offer substantial discounts. > > All of these pro products work fine with the ear-fittings > that come in the box, but can be fitted with earmolds. You > need to get fitted by an audiologist. Whether an earmold > helps, and how much it helps, depends on everyone's > individual ear. It's sort of like shoes. :) One of the major > advantages of these in-ear products is superior isolation > from room sound. 40dB is typical of the best, and custom > earmolds tend improve on that. Again, depending on your ears, > they may also improve comfort. Earbud specialists say that custom-molded earpieces can actually be less comforatble for some people than generic ear pieces that come with the earbuds ... to Jim's point about individuality. Another 25 dB of isolation can be added by using high-quality ear muffs, too. I've found the Bilsom Leightning L3 muffs to be entirely comfortable over a 48-hour contest weekend. Quality earbuds with quality ear muffs provide much more isolation than the best noise-cancelling headphones. Ed - W0YK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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AH....for the good old days. When I could tune across twenty meters and loads of signals....now, here in kh6, I have to hunt just to find a signal.
Grandmaw Susan If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Same here yesterday when I particpated in a "Show and Tell" for Explorer
Scouts at a camporee on top of a 10,000 Ft. mountain in AZ. We really had to search to get a couple of signals who were of strength and clarity to conduct an open air demonstration of HF communication. A K3 sitting on the hood of my Suburban running directly connected to the battery for power, and connected to a 20 Meter dipole in the clear, strung between two fir trees, found VERY few signals on SSB and CW. The group of ~35 scouts and leaders found it exciting to communicate directly via the ether with a station in eastern CO and OH (a 3-way). Some of the scouts were intrigued with the CW demo, and tried their fingers on the iambic paddles while listening to the dits and dahs on the K3 monitor. Hopefully we set the hook in a couple of them. This mountain is named Heliograph Peak, and was used in the 1880's by the US Calvary for relay communications via Heliographs between forts down on the desert floor. Hence the name Heliograph Peak. To demonstrate the method of communications from 130 years ago, we used mirrors to flash to pre-arranged parties in the City of Safford, AZ, 7,000' below and 20 miles away from us. This mountain top is also a modern communications site and we gave them a tour of the towers, buildings and electronic equipment. We showed them amateur VHF and UHF repeaters, IRLP, remote controlled base stations and APRS systems that our club has operating at this location. All in all a great day with a fine group of youth and their leaders. Just needed more signals on 20 Meters. Milt, N5IA ----- Original Message ----- From: "ussv dharma" <[hidden email]> To: <[hidden email]>; <[hidden email]> Sent: Thursday, July 15, 2010 1:44 PM Subject: Re: [Elecraft] Very Efficient Ear Buds AH....for the good old days. When I could tune across twenty meters and loads of signals....now, here in kh6, I have to hunt just to find a signal. Grandmaw Susan ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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