Re: [Elecraft] Bose noise canceling headphones
I use these headphones, the QC2. I paid around $100 for them on ebay over a year ago. There's an occasional hum in the right chanel I get every so often but was just sent a fix for it a couple days ago. As the humm is not there I haven't done the fix. (the hypothesis is a potentiometer needs the occasional turn to restore proper contact). If this is the fix, it is most easy to do. just in case, I called Bose and they said to get replacement ones as this one is not in warranty anymore would cost me $100. I have worn many headphones in my rock, Acoustic and bluegrass career and I have worn quite a few in my ham Radio hobby too but none are more comfortable or easier to me than these Bose QC2 to listen to when it comes to hearing faint sounds. As to the noise cancelling, I have a Ameritron AL-1500 sitting 2-3 feet from me and it has a fairly audible blower. With these headphones on I can hardly hear the slightest hint of a whisper. I have two studio headphones (Senhauser and Sony) which sound great in a quiet studio but in comparison to the QC2 rate a D minus to the QC2 getting an A minus (Minus because there's always room for improvement. That said, I use the QC2 exclusively with my K3 unless I'm walking about the room. If I'm sitting at the radio, I have the QC2 headphones on. As to the batteries, The QC2 uses one AAA battery. I use Costco and a huge package of the AAA Duracells are quite inexpensive there. but I tend to forget to urn the QC2 off and leave it turned on for long periods of time. Even with Costco's low price, I burn through batteries too fast. Seeing as I lend out my MFJ SWR Analyzer frequently to local club members to tweak their antennae, it burns through 12 AA batteries in a heartbeat. So I have a charger for NIMH batteries and have four AAA And 16 of the AA NIMH batteries that I keep charged and use these in the analyzer and QC2 and forget about battery cost. I chose the QC2 as opposed to the QC3 because the QC3 has an Li internal battery which isn't removed to recharge and I don't want to remove it to recharge the battery in a contest. Also, the QC2 are the most comfortable of any of my headphones and envelop the entire ear so extraneous sounds are quite suppressed. Gary KA1J __ 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
Re: [Elecraft] Bose noise canceling headphones
I tried a pair in a bose store and was unimpressed, cant turn the gain up enough, so I built my own, they are a safety hazard now :) Matt W8ESE I use these as they contain no electronics, just good isolation. They're not cheap but they work great. Everyone at the SSB position at the field day I went to last year used them. http://www.extremeheadphones.com/ Paul N4LCD __ 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
Re: [Elecraft] Bose noise canceling headphones [END of thread]
Yup. :-) Time to end this thread. In general, once an OT thread has generated over 10-15 messages, I'd like to ask that people self moderate. We really need to limit volume to avoid email list overload. 73, Eric WA6HHQ Elecraft List Moderator _..._ Phil and Christina wrote: It may be about time to end this OT thread. But, I will say that I used to travel a lot for work, and I chose the Sennheiser noise canceling headphones to make flying less tiring. __ 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
Re: [Elecraft] Bose noise canceling headphones
Date: Thu, 19 Mar 2009 12:49:30 -0700 From: dw bw...@fastmail.fm Subject: [Elecraft] Bose noise canceling headphones To: Elecraft_List elecraft@mailman.qth.net Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net I have a pair of Skullcandy Proletariat NC headphones. I'm quite happy with them, and they're priced a fair amount under the Bose. Amazon reviewers generally rated them inline with the Bose QC's. Rather than retyping it all, you can see my review: http://www.eham.net/reviews/detail/7432 -detrick KI4STU __ 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] Bose noise canceling headphones
Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ 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
Re: [Elecraft] Bose noise canceling headphones
They work great with constant type noise sources such as engines, fans, AC etc. You can still hear people talking in the background, books drop. I have a pair and love them! CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 A slip of the foot you may soon recover, but a slip of the tongue you may never get over. Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw Sent: Thursday, March 19, 2009 1:50 PM To: Elecraft_List Subject: [Elecraft] Bose noise canceling headphones Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ 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
Re: [Elecraft] Bose noise canceling headphones
I bought some noise cancelling Sennheisers in Changi Airport a couple of years ago, they were not as expensive as the Bose, but not far off. They did a fantastic job of cancelling the sorts of frequencies which are troublesome in a jet; I found that I could turn my iPod right down and still hear it. However, in a domestic situation I find that although they do reduce extraneous noise, they don't do a wonderful job of it and the background hiss caused by the amplifier I find unsettling. Such hiss would not have been audible in a noisy environment such as a jet. Now it might be that the Bose are very very much better, but it might be worth trying to find out before lashing out $$$'s! Hope that helps 73 Stephen G4SJP On 19/03/2009 19:49, dw bw...@fastmail.fm wrote: Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. __ 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
Re: [Elecraft] Bose noise canceling headphones
I have a pair of Sony noise-canceling headphones that I'm really pleased with. They were $89.95 at Best Buy. Model MDR-NC6. They run on a single AAA battery. They work best on constant droning noises...perfect for eliminating generator noise during Field Day! They also work well on noise from things like fans and air conditioners. These particular phones sit on your ears rather than surrounding them, so there's always a little noise that leaks in. I'm sure any model that completely covers the ear would be more effective. For the money I'm very happy with mine...wouldn't be without them! 73, Ken Alexander, VE3HLS --- On Thu, 3/19/09, dw bw...@fastmail.fm wrote: From: dw bw...@fastmail.fm Subject: [Elecraft] Bose noise canceling headphones To: Elecraft_List elecraft@mailman.qth.net Received: Thursday, March 19, 2009, 7:49 PM Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ 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
Re: [Elecraft] Bose noise canceling headphones
A lot of guys here at work have the Bose NC headphones to try to cancel out nearby office noise. I suspect they work OK in that application and no better. Doesn't Bose have a liberal return policy? You could answer your own question by ordering a pair and seeing if they work for you. If not, ship them back for a refund. I use a pair of $100 Sony over the ear headphones with my K3. They're not noise cancelling but they do reduce the background noise enough to be worth having. - Keith N1AS - - K3 711 - -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) __ 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
Re: [Elecraft] Bose noise canceling headphones
I tried a pair in a bose store and was unimpressed, cant turn the gain up enough, so I built my own, they are a safety hazard now :) Matt W8ESE On Thu, Mar 19, 2009 at 3:24 PM, Darwin, Keith keith.dar...@goodrich.com wrote: A lot of guys here at work have the Bose NC headphones to try to cancel out nearby office noise. I suspect they work OK in that application and no better. Doesn't Bose have a liberal return policy? You could answer your own question by ordering a pair and seeing if they work for you. If not, ship them back for a refund. I use a pair of $100 Sony over the ear headphones with my K3. They're not noise cancelling but they do reduce the background noise enough to be worth having. - Keith N1AS - - K3 711 - -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) __ 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
Re: [Elecraft] Bose noise canceling headphones
Ken, thanks for including the battery information. I have been attracted to the idea of noise-cancelling headphones for years, but never had enough information about the power sources. My interest has never been urgent enough to write or telephone the manufacturers. Curiously, mose advertisements don't mention that aspect at all. When I had a job, I wanted a pair that could be powered through a wall wart. In the rare occasions that I am on an airplane I would want to use disposable batteries. The worst possible situation in my opinion would be to have to use rechargeables. For daily use they create extra work, and for occasional use they are never ready when needed. 73, Erik K7TV - Original Message - From: Ken Alexander k.alexan...@rogers.com To: Elecraft_List elecraft@mailman.qth.net; dw bw...@fastmail.fm Sent: Thursday, March 19, 2009 1:08 PM Subject: Re: [Elecraft] Bose noise canceling headphones I have a pair of Sony noise-canceling headphones that I'm really pleased with. They were $89.95 at Best Buy. Model MDR-NC6. They run on a single AAA battery. They work best on constant droning noises...perfect for eliminating generator noise during Field Day! They also work well on noise from things like fans and air conditioners. These particular phones sit on your ears rather than surrounding them, so there's always a little noise that leaks in. I'm sure any model that completely covers the ear would be more effective. For the money I'm very happy with mine...wouldn't be without them! 73, Ken Alexander, VE3HLS __ 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
Re: [Elecraft] Bose noise canceling headphones
I've been using a pair of Direct Sound's Extreme Isolation headphones for years. They are very good for blocking out noisy environments. They are not noise canceling, but rather use passive techniques (tight fit, sound absorbing material) to reduce ambient noise by 29dB (or so they claim). They are not the most comfortable to wear for long periods, but they are very effective. http://www.extremeheadphones.com/ex-29.html 73 -- Joe KB8AP On Mar 19, 2009, at 12:49 PM, dw wrote: Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ 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
Re: [Elecraft] Bose noise canceling headphones
At 3/19/2009 04:58 PM, Erik N Basilier wrote: Ken, thanks for including the battery information. I have been attracted to the idea of noise-cancelling headphones for years, but never had enough information about the power sources. My interest has never been urgent enough to write or telephone the manufacturers. Curiously, mose advertisements don't mention that aspect at all. When I had a job, I wanted a pair that could be powered through a wall wart. In the rare occasions that I am on an airplane I would want to use disposable batteries. The worst possible situation in my opinion would be to have to use rechargeables. For daily use they create extra work, and for occasional use they are never ready when needed. I use and have used my Bose (QC-1 and QC-2) for years on rechargeable AAA batteries. (The QC-3 comes with an internal rechargeable battery.) Work great and most of the time can get an entire contest in on one battery/charge. I keep some spares with me. I can always buy a primary cell if I am caught somewhere without a charged battery, which hasn't happened yet in years of use. Using AC mains is the worst. It could introduce ground loops, hum, tether you to a power source, extra wire tangle, etc. 73, Erik K7TV - Original Message - From: Ken Alexander k.alexan...@rogers.com To: Elecraft_List elecraft@mailman.qth.net; dw bw...@fastmail.fm Sent: Thursday, March 19, 2009 1:08 PM Subject: Re: [Elecraft] Bose noise canceling headphones I have a pair of Sony noise-canceling headphones that I'm really pleased with. They were $89.95 at Best Buy. Model MDR-NC6. They run on a single AAA battery. They work best on constant droning noises...perfect for eliminating generator noise during Field Day! They also work well on noise from things like fans and air conditioners. These particular phones sit on your ears rather than surrounding them, so there's always a little noise that leaks in. I'm sure any model that completely covers the ear would be more effective. For the money I'm very happy with mine...wouldn't be without them! 73, Ken Alexander, VE3HLS __ 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
[Elecraft] Bose noise canceling headphones
I don't know about the Bose noise cancelling headphones, but with electronics integrated such phones may pick up RFI. I had a pair of noise cancelling Aiwa headphones, and they picked up a strong buzz whenever I was transmitting, so the noise cancelling feature was useless in practice with my K2. Sverre LA3ZA __ 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
Re: [Elecraft] Bose noise canceling headphones
If you **truly** want to block out ambient noise, there are much better and less expensive solutions. If I recall correctly the $300 (fair traded) Bose QC2 units only have ~10 dB of attenuation. Bose doe not spec their sound reduction because it really isn't so great. I think I found the 10 dB figure above from a 3rd party evaluation of the original Bose QC. I've used the Etymotic ER-6 which is an in-ear solution with claimed average noise reduction of 34-36 dB for ~$85 at amazon.com. http://www.etymotic.com/ephp/er6.aspx The only problem with the ER-6 is it may be uncomfortable for some people. I've worn them in contests and had no problems for extended periods (i.e. 14-15 hours per sitting). My personal favorite now is the Extreme Isolation EX-29. These are over-the-ear headphones that have 29 dB average rejection and can be found for ~$90. http://www.extremeheadphones.com/ex-29.html I had Prof. Amar Bose for my introductory circuit theory class in 1963. He was a great teacher, but IMHO there are much better noise-reduction solutions available for much less money. 73, Bill P.S. I also once borrowed a David Clark aviation headset from a pilot friend. They were worse than awful...uncomfortable, did not block sound well and sounded distorted. -- View this message in context: http://n2.nabble.com/Bose-noise-canceling-headphones-tp2505028p2505571.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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bose noise canceling headphones
Bill W4ZV wrote: If you **truly** want to block out ambient noise, there are much better and less expensive solutions. If I recall correctly the $300 (fair traded) Bose QC2 units only have ~10 dB of attenuation. Bose doe not spec their sound reduction because it really isn't so great. I think I found the 10 dB figure above from a 3rd party evaluation of the original Bose QC. I found a review of the QC3 below: Over the entire frequency range, they block an average of about 15 dB of noise http://www.headphoneinfo.com/content/Bost-QuietComfort3-Headphones-Review/Performance.htm (scroll down to the last graph ~75% of the way down the page. 73, Bill -- View this message in context: http://n2.nabble.com/Bose-noise-canceling-headphones-tp2505028p2505587.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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bose noise canceling headphones
That's another important consideration if you order a pair of Bose phones for a tryout. I can report that my Sonys we not affected by my 80m CW (QRP) operation during Field Day. I was also in the midst of 5 QRO operators as well and had no RFI problems from them either. Maybe I was just far enough away. 73 - Ken --- On Thu, 3/19/09, Sverre Holm la...@nrrl.no wrote: From: Sverre Holm la...@nrrl.no Subject: [Elecraft] Bose noise canceling headphones To: elecraft@mailman.qth.net Received: Thursday, March 19, 2009, 9:22 PM I don't know about the Bose noise cancelling headphones, but with electronics integrated such phones may pick up RFI. I had a pair of noise cancelling Aiwa headphones, and they picked up a strong buzz whenever I was transmitting, so the noise cancelling feature was useless in practice with my K2. Sverre LA3ZA __ 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
Re: [Elecraft] Bose noise canceling headphones
I use the Heil quiet phones plus headset and have never had any RFI issues running a KW. And they are amazing at blocking noise. I had an AL1500 that was surely on the loud side but when I put these quiet phones on you hardly notice it's there. - 73, Greg - AB7R Whidbey Island WA NA-065 On Thu Mar 19 14:51 , W0MU Mike Fatchett sent: I have seen rfi issues with the QC2 and the Heil noise cancelling headsets. A couple of turns through a snap on fixed that. Neither are great at random shack noises but both seemed to work very well on fixed sounds like fans. I don't doubt that there are better solutions out there. Bose has one heck of a marketing budget! The folks at Heil told me that they will have some new headphones/sets at Dayton this year that are supposed to be better then the Bose and more rfi proof then their previous headsets and more comfortable. CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 A slip of the foot you may soon recover, but a slip of the tongue you may never get over. Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net','','','')elecraft-boun...@mailman.qth.net] On Behalf Of Bill W4ZV Sent: Thursday, March 19, 2009 3:40 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Bose noise canceling headphones Bill W4ZV wrote: If you **truly** want to block out ambient noise, there are much better and less expensive solutions. If I recall correctly the $300 (fair traded) Bose QC2 units only have ~10 dB of attenuation. Bose doe not spec their sound reduction because it really isn't so great. I think I found the 10 dB figure above from a 3rd party evaluation of the original Bose QC. I found a review of the QC3 below: Over the entire frequency range, they block an average of about 15 dB of noise http://www.headphoneinfo.com/content/Bost-QuietComfort3-Headphones-Review/Pe rformance.htm (scroll down to the last graph ~75% of the way down the page. 73, Bill -- View this message in context: http://n2.nabble.com/Bose-noise-canceling-headphones-tp2505028p2505587.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: Elecraft@mailman.qth.net','','','')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: Elecraft@mailman.qth.net','','','')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
Re: [Elecraft] Bose noise canceling headphones
On Thu, 19 Mar 2009 14:33:56 -0700 (PDT), Bill W4ZV wrote: If you **truly** want to block out ambient noise, there are much better and less expensive solutions. If I recall correctly the $300 (fair traded) Bose QC2 units only have ~10 dB of attenuation. Bose doe not spec their sound reduction because it really isn't so great. I think I found the 10 dB figure above from a 3rd party evaluation of the original Bose QC. I've used the Etymotic ER-6 which is an in-ear solution with claimed average noise reduction of 34-36 dB for ~$85 at amazon.com. http://www.etymotic.com/ephp/er6.aspx The only problem with the ER-6 is it may be uncomfortable for some people. I've worn them in contests and had no problems for extended periods (i.e. 14-15 hours per sitting). Agreed on all counts. I work in pro audio, and have long used the more expensive Etymotic ER4 in-ear phones to mix live music. Their noise isolation is EXCELLENT if the earpiece matches your outer ear well, less satisfactory if it does not. That's very much a matter of every person's ears. These earphones, and competing models sold by Shure, are made primarily for musicians working on stage. I own two pairs of ER4s and three pairs of Shures (three different models). The ER4s and the higher priced Shures are all quite comfortable, and easy to wear for the duration of a contest as anything else I've tried. With all of these higher quality in-ear earphones, you can go to an audiologist and have ear molds made to fit your own ears. That's pretty much the ultimate both in comfort and in noise isolation. I also like and use Sony MDR7506 headphones. They are comfortable and sound great, but have far less isolation. 73, Jim Brown 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
Re: [Elecraft] Bose noise canceling headphones
One other comment in this thread re: RFI. I've not seen the Bose cans, but I operate fairly often at N6RO, where a lot of guys bring Heil noise-cancelling headsets. They DO have RFI problems, and Ken's antennas are mostly not very close to the shack (mostly 200 feet or more). K3LR loves the Bose headphones, and uses them extensively in his contesting super-station. I've driven past Tim's station (it's on the frontage road to one of the interstates at the OH/PA border), but I haven't toured it. Some of his antennas ARE pretty close to his shack. 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
Re: [Elecraft] Bose noise canceling headphones
They work - about as well as a K3 does - so go buy them now! -- It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err. -Mohandas K. Gandhi (1869-1948) On 19 Mar 2009, at 19:49, dw wrote: Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ 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
Re: [Elecraft] Bose noise canceling headphones
Hi, The Bose noise cancelling phones work GREAT for repetitive noise like fan noise, rain on the roof (right W0YK?) and other things like that. I have the QC2 having recently upgraded from the QC1s. They are the around the ear model and the muffs have great noise reduction themselves. Fred -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dw Sent: Thursday, March 19, 2009 1:50 PM To: Elecraft_List Subject: [Elecraft] Bose noise canceling headphones Ah! I've always wondered how well Bose noise cancelling phones worked. Do they really cancel noise external to the head-set? I understand the concept...mic the external noise and mix it back into the earphones 180 out of phase. Just never got a chance to see how effective. There are times when I have trouble with noises in the house, and I would love it if the head-phones could totally cancel all that out. But not sure how far advertised is from reality :) I have a pair of Delta Airlines earbuds that basically don't work at all, but my Bose Quietcomfort noise cancelling phones SCREAM when connected to the rig. It's a pretty low signal coming out of the jack, but with the right phones, it sounds wonderful. -- bw...@fastmail.net __ 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 This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. __ 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
Re: [Elecraft] Bose noise canceling headphones
No problem with the new QC2's that I have. The QC1s did have an rf interference problem, though. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Sverre Holm Sent: Thursday, March 19, 2009 3:22 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Bose noise canceling headphones I don't know about the Bose noise cancelling headphones, but with electronics integrated such phones may pick up RFI. I had a pair of noise cancelling Aiwa headphones, and they picked up a strong buzz whenever I was transmitting, so the noise cancelling feature was useless in practice with my K2. Sverre LA3ZA This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. __ 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] Bose noise canceling headphones - another option
I don't know the 'street' price of the Bose headphones, but the suggested retail puts them on a par with a David Clark H10-30 aviation headset. Over 20dB of passive quieting and a comm quality microphone. I've had a set of H10-40's (27dB) for 20 years. They are indestructible. 73, Bill N2BC __ 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
Re: [Elecraft] Bose noise canceling headphones
I have both the Bose and the Heil noise cancelling headsets, hands down the Bose is better. I don't like the big dongle on the Heils, I just wish the Bose had the boom mic on them I've had no RFI with the Bose but have had with the Heil. The Bose is more comfortable but very $$$ Terry __ 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
Re: [Elecraft] Bose noise canceling headphones
It may be about time to end this OT thread. But, I will say that I used to travel a lot for work, and I chose the Sennheiser noise canceling headphones to make flying less tiring. I think that they sound better than the Bose (with all of its marketing hype). They also cost less than half as much. The battery pack is in a dongle with long life using alkaline batteries. I enjoy having them available. I am biased toward wide frequency response headphones (noise canceling in the shack is less an issue), and I use my Grado hi-fi phones (SR-60) on the K3. My Heil Goldline mic is on a boom in front of my face. 73, Phil, NS7P -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]on Behalf Of Terry Price Sent: Thursday, March 19, 2009 6:51 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Bose noise canceling headphones I have both the Bose and the Heil noise cancelling headsets, hands down the Bose is better. I don't like the big dongle on the Heils, I just wish the Bose had the boom mic on them I've had no RFI with the Bose but have had with the Heil. The Bose is more comfortable but very $$$ Terry __ 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
