[Elecraft] [K3] One Last Hearing Story

[Jim N7US]

I like the Sennheiser HD 280 Pro, which claims "up to 32 dB of ambient noise attenuation."  I have Bose QC2 active noise cancellation too but prefer the Sennheiser.

They seal out amplifier blower noise and noise from a furnace and water heater's exhaust fan that are about 20' away.  The sound is crisp, they sit around my ears, not on them, and are comfortable for many hours in a contest. 

I realize the limitations of eHam reviews, though they score well - http://www.eham.net/reviews/detail/2951 .

73, Jim N7US



-----Original Message-----

Bill Frantz wrote
> ...but what really works wonders are my Sennheiser noise-canceling 
> headphones.

"Sennheiser NoiseGard™ 2.0 technology provides up to 90% active noise cancellation"
http://en-us.sennheiser.com/noise-cancelling-headphones

90% reduction may sound good but it's only ~10 dB, which is typical for most active noise cancelling headphones.  If you're serious about noise reduction, you should be looking for 30 dB, which is available in both "in-ear" and "over-the-ear" style passive headphones:

http://www.etymotic.com/ephp/epcomp.html
http://www.extremeheadphones.com/products/ex-29-headphones

73,  Bill  W4ZV