Behringer ub1204fx-pro and old EV mic

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Member Since: Oct 21, 2004

I'm thinking of turning on the phantom power for this old EV 671 XLR dynamic mic (ca.1978) because I'm getting so much hiss but am nervous about doing so and thinking it might not help anyway.

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I am not a crook's head
Member
Since: Mar 14, 2003


Nov 11, 2004 04:29 am

why would you want to apply phantom power to a dynamic microphone? I would guess that it would have absolutely no effect on the performance of the microphone.

what kind of preamp are you using? If you're getting noise, I'd suspect the preamp before suspecting the microphone.

Also check your gain staging at each point along the way. If you're not getting enough signal saturation at some point in the chain and you're compensating by cranking the gain at some point farther along, then that could also create lots of hiss.

Administrator
Since: Apr 03, 2002


Nov 11, 2004 06:17 am

phantom power won't help, but it won't hurt either.

I agree with TadPui, sounds like gain staging...

Member
Since: Oct 21, 2004


Nov 11, 2004 09:55 am

I gues I need a preamp for the mic. Looking for something inexpensive for just one mic. I could even make one if anyone knows where I can find a schematic.

Administrator
Since: Apr 03, 2002


Nov 11, 2004 09:57 am

every mic (or every common mic) needs preamping. My advice would be to get a small mixer, maybe a Behringer UB series or something, and use those preamps, as the mixer may/will come in handy for other things as well...isn't your phantom power coming from a mixer? It should have preamps on it?

Maybe I am just not understanding your setup...

Member
Since: Oct 21, 2004


Nov 11, 2004 11:55 am

The thing is I have a mixer, the behringer ub1204fx-pro. The preamps in it just don't boost the mic up enough. I was surprised by this.

Administrator
Since: Apr 03, 2002


Nov 11, 2004 11:58 am

oh, weird, the UB series has decent preamps for the price...I have the UB1622 and they work well...have you tried the mic thru other systems and verified it's not the Mic? tried different cables, different trim setting, compression and such?

Cone Poker
Member
Since: Apr 07, 2002


Nov 11, 2004 12:58 pm

http://www.gyraf.dk/schematics/Neumann_pv76.gif

hers a neuman mic pre

Member
Since: Oct 21, 2004


Nov 11, 2004 07:43 pm

I've got it to an acceptable level in the past by connecting the mic to the behringer through an old reciever preamp and that does the trick. Never had a problem with the mic before. Just having trouble believing there could be something wrong with the mixer but maybe there is. I bought it new from Mac Midi (or Midi Mac?)in Tennessee(?) a year ago last summer. Had the problem from the first but always figured I just wasn't doing something right.

BTW thanks for that schematic but I was hoping for something simpler plus it being in German I don't recognize some of it.

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