[Elecraft] CM-500

[Walter Underwood]

The official product page is also wrong, either through ignorance or spell-check. It describes it as "a sensitive electric microphone”.

https://usa.yamaha.com/products/music_production/accessories/cm500/features.html#product-tabs <https://usa.yamaha.com/products/music_production/accessories/cm500/features.html#product-tabs>

I think we can all agree that a) it has an electret mic, and b) the official product descriptions are a mess.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Nov 8, 2020, at 1:27 AM, Jim Brown <jim at audiosystemsgroup.com> wrote:
> 
> On 11/7/2020 2:42 PM, Bill Frantz wrote:
>> The packaging said (in part), "Dynamic Microphone for Active Musicians"
> 
> The sales/marketing department, usually ignorant of what they're selling, wrote that drivel you're reading, which is intended simply to sell more of whatever they're selling.
> 
> The CM500 has had an ELECTRET mic as far back as 2008, when W6XU, another audio professional, arranged a group purchase for your Bay Area contesting club. It DOES need Bias, which most modern rigs provide on one pin of their mic connector. Simply adding a resistor of suitable value (in the range of 5-10KOhms) between that pin and the mic input pin, provides bias suitable for most electret mics.
> 
> 73, Jim K9YC
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