Rick Davis
1681 posts
Apr 28, 2013
10:54 AM
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How many volts does your mic produce on a volt meter when you play normally? And when you play loud?
I think it will be in the range of .4 to 2.0 volts.
If you have multiple mics, which one produces the most volts?
What would be considered the normal range for a Shure CM element?
Thanks.
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-Rick Davis
The Blues Harp Amps Blog
The Mile High Blues Society
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Last Edited by Rick Davis on Apr 28, 2013 10:57 AM
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5F6H
1618 posts
Apr 29, 2013
1:27 AM
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My most commonly used dynamics are around 1.5-1.7VAC...I have heard of particularly hot mics hit ~6VAC. A hot Shure CR/CM may get into this region.
Anything over a volt should be OK, if you have no headroom with a high voltage mic, using a lower gain preamp tube at the input stage increases the signal swing (headroom) available.
When you play into a meter, you can't help but play loud because you always want to get the "high score"! ;-)
Clip an RMS AC voltmeter accross your free mic cable plug, with a 4.7Meg resistor bridging the clips/tip & sleeve.
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Last Edited by 5F6H on Apr 29, 2013 1:28 AM
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Rick Davis
1683 posts
Apr 29, 2013
7:53 AM
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Mark, thanks.
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-Rick Davis
The Blues Harp Amps Blog
The Mile High Blues Society
Tip Jar
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