It probably was dynamic at some time, but is electret now. I don't think
I have the packaging mine came in any more. I bought it from Sam Ash
Music for a really good price last August 19, 2009. And their web page
today still says its a dynamic microphone.
http://www.samash.com/p/CM500-Headphones-with-Microphone_-49969751 Like
everything else on line about it that was copied once.
Its changed, its different than it was. Its electret and mine came with
a battery box for bias if the input it is used with can't supply bias.
73, Jerry, K0CQ
On 3/21/2010 8:31 PM, Reed Krenn wrote:
> I didn't know what the CM-500 was, so I went to Yamaha's website. Here is a
> quote from the description:
>
>
> "Combining closed-ear, noise-reducing headphones with a sensitive dynamic
> microphone, CM500 creates the ideal choice for audience-interactive DJs or
> school music labs. Crafted with high-impact materials and an ultra flexible
> headband, its solid construction withstands repetitive twisting and hard use
> found in music labs and on the dance floor."
>
> http://www.yamaha.com/yamahavgn/CDA/ContentDetail/ModelSeriesDetail.html?CNTID=37726
>
> Given the expertise (which I greatly respect) of the individuals weighing in
> here on the reflector, I'm inclined to think the marketeers at Yamaha got it
> wrong
>
> -- Reed / WW3A
>
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