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#1
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Power Mini Electret with Phantom
Hi,
I am using a mini condenser electret microphone for research that I would like to connect to the balanced XLR input of a mixer. Ideally, I would like to power the mic on the mixer's phantom power. I tried connecting the - and ground of a hacked XLR cable and hooking up the mic's leads accordingly (as suggested by some websites), but the noise was too dramatic. So, I'm unsure what the best solution is. Should I buy an unbalanced to balanced converter? Is there a simple "hack job" solution? Should I just splurge for some more expensive balanced mics? I'm not incredibly knowledgable on the subject, so any words of wisdom would be greatly appreciated. Thanks a lot. |
#2
Posted to rec.audio.pro
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Power Mini Electret with Phantom
"Polar" wrote ...
I am using a mini condenser electret microphone for research that I would like to connect to the balanced XLR input of a mixer. Ideally, I would like to power the mic on the mixer's phantom power. I tried connecting the - and ground of a hacked XLR cable and hooking up the mic's leads accordingly (as suggested by some websites), but the noise was too dramatic. So, I'm unsure what the best solution is. Should I buy an unbalanced to balanced converter? Is there a simple "hack job" solution? Should I just splurge for some more expensive balanced mics? I'm not incredibly knowledgable on the subject, so any words of wisdom would be greatly appreciated. http://www.uneeda-audio.com/#phantom This is a collection of info about modifying PZM microphones, but the circuits apply to most electret condenser mic capsules such as the one you likely have. A kit for powering electret from phantom power.... http://www.uneeda-audio.com/#pzm More information about powering electrets... http://www.epanorama.net/circuits/mi..._powering.html |
#3
Posted to rec.audio.pro
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Power Mini Electret with Phantom
Polar wrote:
I am using a mini condenser electret microphone for research that I would like to connect to the balanced XLR input of a mixer. Ideally, I would like to power the mic on the mixer's phantom power. I tried connecting the - and ground of a hacked XLR cable and hooking up the mic's leads accordingly (as suggested by some websites), but the noise was too dramatic. So, I'm unsure what the best solution is. Should I buy an unbalanced to balanced converter? Is there a simple "hack job" solution? Should I just splurge for some more expensive balanced mics? You may well have damaged the mike, too. If you get the September 2001 issue of Recording Magazine, I had an article on doing this. It's got three different schematics for circuits that will do the job with varying degrees of quality. If the school library can't get you a free copy, you can pay five bucks to the editors for one. The article details how each of the circuits work and the various advantages and disadvantages of each. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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