The Koss SB-40 apears to be the same headset as the Yamaha CM-500 but with a dynamic mic. The mic plug on my first CM-500 said “KOSS”, so I’m pretty sure the only difference is the microphone.
I’ve heard complaints about the dynamic mic on the SB-40. https://www.amazon.com/Koss-SB40-Computer-Headset-Microphone/dp/B00005ML7T <https://www.amazon.com/Koss-SB40-Computer-Headset-Microphone/dp/B00005ML7T> The CM-500 does not need an adaptr to be used with the KX3. Turn off the mic button menu setting and plug it in. If you want to get fancy, a regular stereo-to-mono splitter will separate the logic bias from the mic bias for a cleaner, higher-level mic signal. https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ <https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/> wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Nov 1, 2020, at 6:05 PM, JP Douglas <kb1...@gmail.com> wrote: > > From my experience, some of the CM-500s have an electret mic and others a > dynamic mic. I don’t know if its an age factor. > I use mine with my YAESU FT-897 and with my Kenwood TS-480, don’t have the > adapter at this point to use with the KX3...Pretty good for an in-expensive > boom mic. > 73 de Jose Douglas KB1TCD > > Sent from my iPad > >> On Nov 1, 2020, at 8:40 PM, Walter Underwood <wun...@wunderwood.org> wrote: >> >> I tried a Koss SB-45 headset and hated it. It gets good reviews from hams >> and has >> an electret mic, but it was not comfortable at all. It sat on top of my ears >> instead of >> around my ears, plus it grabbed my head more tightly than the Yamaha CM-500. >> Finally, the mic boom was not as easy to position. >> >> I sent it back and ordered a new Yamaha CM-500. I haven’t noticed any major >> differences between the new one and my eight year old one (wires broke on >> that one). >> The mic boom pivot is stiffer on the new one, but that could easily be a >> normal >> manufacturing variation. >> >> wunder >> K6WRU >> Walter Underwood >> CM87wj >> http://observer.wunderwood.org/ (my blog) >> >>> On Nov 1, 2020, at 2:12 PM, Bill Frantz <fra...@pwpconsult.com> wrote: >>> >>> The boom mic on my CM-500 is now flopping around held only by the signal >>> wire. >>> >>> Any ideas about how to reattach it? >>> >>> What are the best replacement headsets these days. Someone said that the >>> CM-500 has changed for the worse in the last few years. >>> >>> Any other advice? >>> >>> 73 Bill AE6JV >>> >>> ----------------------------------------------------------------------- >>> Bill Frantz | Security is like Government | Periwinkle >>> (408)348-7900 | services. The market doesn't | 150 Rivermead Rd #235 >>> www.pwpconsult.com | want to pay for them. | Peterborough, NH 03458 >>> >>> ______________________________________________________________ >>> 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 >>> Message delivered to wun...@wunderwood.org >> >> ______________________________________________________________ >> 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 >> Message delivered to kb1...@gmail.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 Message delivered to arch...@mail-archive.com
