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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
