Is this similar to what Sonic Sense does to the dat-mods ?
-cd
> From: "Adam Liberman" <>
> Reply-To:
> Date: Thu, 17 Apr 2003 20:26:20 -0000
> To:
> Subject: [Nature Recordists] MiniDisc Mic Cable Noise
>
>
> Not quite mic preamp noise, but another source of noise has come to
> my attention recently due to a client compaining about noisy mic
> cables:
>
> The "plug-in power" available on the mic jacks of many small
> MiniDisc recorders can cause bad crackling noises at the mic cable
> jack. This is due to small changes in resistance causing a shift in
> the DC voltage drop, and can be especially problematic when using
> the new right-angle mini-plug connectors as they can tend to rotate
> a little if not tied down.
>
> This can be solved by inserting a small electrolytic capacitor in
> the XLR cable shell, with the negative lead soldered to pin 2 and
> the positive lead connected to the wire that was previously on pin 2.
>
> A Panasonic FC series (low ESR, good for audio) cap that works well
> and fits in a Neutrik shell is available from Digikey, item # P11214-
> ND. It is 27uF/25v, and measured with a Sharp MD-DR7-A MiniDisc
> recorder introduces only a 0.3dB drop at 20 Hz and no measurable
> distortion. Caution: Don't use this cap with an outboard 48volt
> power supply that does not block the 48v volts from the output side.
> 48v self powered mics are no problem.
>
> Thanks,
> - Adam Liberman
> Liberman Sound
> www.libermansound.com
>
>
>
> Yahoo! Groups Sponsor
>
> To unsubscribe from this group, send an email to:
>
>
>
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service
> <http://docs.yahoo.com/info/terms/> .
>
[Non-text portions of this message have been removed]
________________________________________________________________________
________________________________________________________________________
|