Need help to find the right battery module for mics

[giar]

Hi there! This is my fisrt post here, but I read the forums for about a year.

I own a MZ-NH700 and I like it very much. He is my recorder since last year and have recorded at least 30 shows so far.

The mics I use are of my own design. I built them following guides on the internet (and also the greenmachine tutorial). I used radio shack capsules mounted into a cheap set of earbuds. They look a lot like the Microphone Madness

MM-BSM-8 :

I use also an homemade battery module, built following greenmachine's plan:

My set works really good, and sound also very good.

Even if I'm happy with my gear, I was curious to try other mics. Recently, I bought on e-bay some AT831R (see this page) mics at a very competitive price. Since those mics are not linked together to one 3.5mm connector, I was wondering if my battery box would fit for those mics. First of all, I'm a little mixed up because the audio-technica website says that the mics are supposed to have Integral 3-pin XLRM-type output connectors, but the mics I bought have 3.5mm connectors. Secondly, the mics are supposed to work only with Phantom Power. I really don't know what to do...Is it possible to send phantom power through mini-jack? I know that "plug-in power" is a kind of phantom power, but it is nowhere near 48V... Then, the problem I will encounter is that the mics are apart from each other. I will need a battery module with 2 inputs and one output, all in mini-jack, and i will need it to offer 48V phantom power... I'm starting to think that maybe I made the wrong choice when I bought these mics...

Anyway, I would really appreciate some help here, I'm very confused lol

Guyaume

Edited September 24, 2007 by giar

[Strungup]

PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical

18 volts phantom would be mre than enough, and you get that by building a circuit using two 9 volt batteries . There is supposed to be a small power module for those mics , did you buy them used ?

here are some DIY's

http://www.diyfactory.com/projects/jlmsimp...jlmsimpledi.htm

http://recording.org/users/kev/PS.htm

http://www.sound.westhost.com/projects-6.htm

http://www.fivefish.net/diy/neve1272/default.htm ( definately klik this one)

http://web.telia.com/~u31617586/

Edited September 24, 2007 by Guitarfxr

[giar]

PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical

18 volts phantom would be mre than enough, and you get that by building a circuit using two 9 volt batteries . There is supposed to be a small power module for those mics , did you buy them used ?

here are some DIY's

http://www.diyfactory.com/projects/jlmsimp...jlmsimpledi.htm

http://recording.org/users/kev/PS.htm

http://www.sound.westhost.com/projects-6.htm

http://www.fivefish.net/diy/neve1272/default.htm ( definately klik this one)

http://web.telia.com/~u31617586/

Hi there, thanks for your answer : I'm reading the webpages you provided right now

For your information, the mics are supposed to be new, but they come without the power module.

I didn't receive the package yet, because I ordered it about 2-3 days ago. I was looking for a way to use them when they'll arrive!

The seller still offer the product, you can see his auction here

I was wondering if that kind of power module could be bought somewhere. I know audio-technica sells something of that kind, but it is only for one mic and in mini-xlr. I am looking for something portable that could handle both mic at the same time. If you have any idea or precision, juste let me know

[A440]

That price is so ridiculously low that I would be very suspicious, but hope for the best.

You will have two mono mics. What you really need is a battery powered mixer with phantom power. Guitarfxr, are there any you recommend?

[giar]

That price is so ridiculously low that I would be very suspicious, but hope for the best.

You will have two mono mics. What you really need is a battery powered mixer with phantom power. Guitarfxr, are there any you recommend?

I know, the price made me suspicious at first, but then I read the seller's feedback profile and he got 99,6% positive reviews on more than 2000 people so I though that it was worth a try.

I'll see what will happen within the next week...

I'm still thinking about a way to power these mics with one battery module or phantom power module... Something reliable and portable.

Any suggestions, let me know