To: Elecraft List
Subject: Re: [Elecraft] KX3: Cleaner audio with Yamaha CM500, also PTT
I have several CM500'ds and also a Koss SB40. The Koss SB40 headset is
IDENTICAL to the CM500 in design and construction, except in one area: The
Mic capsule. The Koss mic capsule is dynamic, not condense
On Mon,8/17/2015 11:20 PM, Luis V. Romero wrote:
The Audio Technica BPHS1. Its a bit expensive, but it sounds just
lovely with its flat response dynamic element. Its way more
comfortable than the Heil Elite and the new Pro cans. Its built for
sports play-by-play announcing.
Hi Lu,
AT is a
I have several CM500'ds and also a Koss SB40. The Koss SB40 headset is
IDENTICAL to the CM500 in design and construction, except in one area: The
Mic capsule. The Koss mic capsule is dynamic, not condenser. It is also
HORRIBLE! I believe it is a cheap earphone soldered up for mic duty. It
I kept planning to build an adaptor to fix it, but didn’t get around to it.
Then I drew it out to make sure I know what was going on and it hit me. Very
much a case of “laziness is the mother of non-reinvention”.
The PTT jack was an unexpected bonus.
wunder
K6WRU
CM87wj
http://observer.wunderwo
wunder,
After building an adapter using a TRRS plug for myself, I had a
"head-slapping" reaction to your solution. It should work wonders for
not only the CM500, but also for most any other microphone designed to
be used on a computer - most, if not all, have the tip and ring
connected toget
My blog post was mostly about providing clean mic bias with the KX3 for
electrets that get bias from both tip and ring, like the Yamaha CM500.
Give it a quick read, it might answer some questions.
http://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/
wunder
K6
On Sun,8/16/2015 7:17 PM, Brian Denley wrote:
Don't electrets have to be powered (voltage applied) where dynamics do not?
Right.
On Sun,8/16/2015 8:00 PM, James Wilson wrote:
Yes, the electret mics do require a small amount of power - Elecraft
and others call it BIAS voltage.
It's called bi
Jim, it's true audio quality is very subjective.
For good communications quality, I personally
judge the three headsets I mentioned to be about
equal. Over the ear comfort also compares with my
over the ear headphones - a sauna for the ears. :-)
Brian, Yes, the electret mics do require a small amo
Jim:
Don't electrets have to be powered (voltage applied) where dynamics do not?
Brian
KB1VBF
Sent from my iPad
> On Aug 16, 2015, at 8:34 PM, Jim Brown wrote:
>
>> For example, Yamaha's own description of the CM500 called it a dynamic mic,
>> while it definitely an electret.
>
> I suspect t
On Sun,8/16/2015 5:12 PM, James Wilson wrote:
All three of these are look-alikes and have electret mics and
the same wiring and 3.5mm plugs. They sound almost the
same plugged into the rear jacks on my K3 (with bias turned on.)
No surprise. BUT -- how comfortable are they? Have you worn them f
There's still another Koss headset - Model KS-45 that's
plug-in compatible with the Yamaha CM500. It has an
electret mic. Also about $25 on Amazon.
Look also at Amazon's listing for a RoverBeats Bravo.
Electrically and functionally (and sound) it's interchangeable
with the CM500 and - for us REAL
I got a quick response from David Anderson, GM4JJJ, that the Koss SB40 has a
dynamic mic. Looking at the specs at B&H Photo, I agree.
I’ve updated the blog post.
wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)
On Aug 16, 2015, at 1:47 PM, Walter Underwood wrote:
> Finally got ar
Finally got around to writing up my simple hack for cleaner mic bias with the
KX3 and Yamaha CM500. Along the way, I spotted something that will make all us
cheap hams happy. It looks like the Koss SB40 ($25) is the same headset as the
Yamaha CM500 ($55).
But we really care about the better aud
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