Unpowered wired lav mic
Looking for a lav mic with the standard xlr connector attached, no power supply and shirt worn. Can only find unterminated pigtail types that could be converted.
Guess I can learn to solder in a hurry : - ) if necessary. Is there such a product? I would be thankful for any recommendation of something new or used I am working with a small budget of 150. |
Re: Unpowered wired lav mic
You will probably get better answers but here's a start: Audio-Technica - Microphones, headphones, wireless microphone systems, noise-cancelling headphones & more : ATR3350 Omnidirectional Condenser Lavalier Microphone
This is an inexpensive lav which runs off of a button battery contained in the connecting cord. It would require a mini-plug to XLR adapter. This is a mono plug, Rode makes a stereo-mini to xlr adapter which might work. http://www.campbellcameras.com/shopp...01RODVXLR.aspx partial discliamer: I have used this little mike on a consumer-level camcorder, it's no Countryman or Tram but it works. Be sure you get the battery right- way-round or it will work really badly. I have not tried mono plug in the stereo plug adapter listed above, I think it will work but I am not positive. At any rate, it's a very inexpensive solution until you find a better one.... PS if you learn to solder you could make an adapter with a mono mini female and an xlr male plug (Neutrik recommended) , common items.at Markertek, Mouser Electronics, etc. PPS: If you use the xlr, be sure to turn off the phantom power to that input. As pointed out below, the 48v will fry the mike. Ummm, I just found the mini-to-xlr adapter mentioned above, tested it wth the AT lav in my field mixer forgetting about the phantom power, and pffffft.....Otherwise, with no 48v on the line, I THINK it will work.... |
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FYI, the XLR power supply module by itself will consume the majority of your budget. You need to budget about $400 or so for most of the mainstream hard-wired lavs like the Tram TR50 |
Re: Unpowered wired lav mic
There are dynamic lav mics which require no power, but they are quite rare these days, and may not be easily found within your budget. They are also larger, heavier, and lower-output than more modern electret condenser designs. OTOH, XLR inputs without phantom power are also rather rare and it is curious why you would be seeking such a combination.
Technically, the low voltage required by electret condenser microphones is not "bias" voltage. The electret charge itself is the "bias" or polarizing charge for the capsule. The voltage is required as the operating power for the impedance converter circuit (typically just a single FET transistor). To be sure, it uses very little current, so batteries often last practically the shelf-life of the battery. Non-electret microphones also require a bias/polarizing charge across the capsule. In modern designs typically provided by the 48V phantom voltage itself. That is why you will find that all low-voltage microphones are of the electret type. Ref: Microphone - Wikipedia, the free encyclopedia |
Re: Unpowered wired lav mic
Richard, thanks for the Wiki link.
The uninformed goal of an unpowered lav was simply to reduce weight (no battery). I was thinking that the mixer would provide the needed power, but that obviously won't work for many mics as you said. There is a budget audio-technica on B&H that seems to have very good reviews. Guess the power module can use phantom power instead of its battery. http://www.bhphotovideo.com/c/product/68272-REG/Audio_Technica_AT803_AT803B_Mini_Clip_On.html |
Re: Unpowered wired lav mic
That AT803 has a power pack practically the size of a deck of cards. If I were looking for something really light and small, I would consider something like...
Naiant |
Re: Unpowered wired lav mic
There are a few dynamic lavs available like the Shure SM11..
Shure SM11 however it has a low output level ( –64 dBV/Pa (0.60 mV), (1 Pa = 94 dB SPL) and would only be good for higher SPL sources. |
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Any experience with how it sounds? |
Re: Unpowered wired lav mic
I followed Steve's point that some sort of power module was inevitable. Oh well, too late now :-) Still feel good about this choice.
Thinking about this, it is probably easier to get the PM and mic situated on me, leave them there for the duration and then plug the xlr into it as needed. Am hiking all over creation and repeatedly setting up. This approach is a bit bulkier but its a small trade off for not having to reattach the mic every 15 minutes. Considering investing in a llama or one if its smaller cousins. Any recommendations? |
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You want to borrow them and test them against what you have now? |
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Cheap but have hung on to them as back up mics. It been a number of years since I bought them but it looks like the Shack still carries them. Hands-Free Tie-Clip Omnidirectional Electret : Microphones | RadioShack.com Chris Young CYV Productions Sydney |
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Just wondering how the Naiant mics went?
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Anyway, It's a little out of your budget, but the Countryman B3 mic is amazing and it's pretty damn tiny. http://www.bhphotovideo.com/c/product/295908-REG/Countryman_B3P4FF05B_B3_Omnidirectional_Lavalier_Microphone.html |
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