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Author Topic: AT853's one channel very low  (Read 4924 times)

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Offline pillowman

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AT853's one channel very low
« on: April 02, 2017, 10:03:47 AM »
Hey community!
Unfortunately I had a bad experience last night with my new purchased pair of AT853 mics.
They are the AT853a with card caps and 4.7k dark train mod.
While I was recording I realized that one channel was much, much quiter than the other one.
I know that there is always a small difference between the caps when they are not matched
but the difference I had last night was much to big.
Please check the pic to see what I mean.

When I was at home I did some tests like changing the caps, the cables aso
but the result was still the same.

So here is my question how to fix the problem or better what can I do ?!
Any help would be awesome !
Thank you in advance !
pillowman
RECORDERS: Sony PCM-A10 / 3x Sony PCM-M10 / TASCAM DR-2d / Sony NH 600 / Sharp MD-MT180(H) / Sony MZ-R35
MICS: LINE AUDIO CM3, AT853c, ATU853c, hc  (4.7k mod) / Sony ECM-717 / 3x Sennheiser ME104
BBox's: Denecke PS-2 / SP-SPSB-9 / SP-SPSB-10 / SP-SPSB-20 / Soundman A3

trading page: www.openingtime.lima-city.de

Offline vanark

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Re: AT853's one channel very low
« Reply #1 on: April 02, 2017, 10:09:08 AM »
Is there any chance the cable plug was not fully inserted into the jack?

Have you tried to reproduce at home? What other gear was in the signal path? preamp? battery box? recorder?
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Offline beatkilla

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Re: AT853's one channel very low
« Reply #2 on: April 02, 2017, 10:47:08 AM »
Is the metal tab inside underneath the caps making good contact or dirty?If not slightly bend the tab up.

What happens if you swap the capsules ?

Offline pillowman

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Re: AT853's one channel very low
« Reply #3 on: April 02, 2017, 10:52:00 AM »
Is there any chance the cable plug was not fully inserted into the jack?

Have you tried to reproduce at home? What other gear was in the signal path? preamp? battery box? recorder?

hoho!
no, everything was plug in perfectly ...
I used a bbox between recorder and mics.
I exchanged the cables between both and the result was the same.
next I went straight into the 'mic in' of the recorder - same bad result :-/
hm, ...
pillowman
RECORDERS: Sony PCM-A10 / 3x Sony PCM-M10 / TASCAM DR-2d / Sony NH 600 / Sharp MD-MT180(H) / Sony MZ-R35
MICS: LINE AUDIO CM3, AT853c, ATU853c, hc  (4.7k mod) / Sony ECM-717 / 3x Sennheiser ME104
BBox's: Denecke PS-2 / SP-SPSB-9 / SP-SPSB-10 / SP-SPSB-20 / Soundman A3

trading page: www.openingtime.lima-city.de

Offline pillowman

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Re: AT853's one channel very low
« Reply #4 on: April 02, 2017, 10:57:43 AM »
Is the metal tab inside underneath the caps making good contact or dirty?If not slightly bend the tab up.

What happens if you swap the capsules ?

hoho,
when I changed the caps still the left channel is much to low, ...
.
For my understanding the contact underneath the caps is ok, ...
but what can I use to clean the conatact ?
will give this a try ...
thanks for your help ...
pillowman
RECORDERS: Sony PCM-A10 / 3x Sony PCM-M10 / TASCAM DR-2d / Sony NH 600 / Sharp MD-MT180(H) / Sony MZ-R35
MICS: LINE AUDIO CM3, AT853c, ATU853c, hc  (4.7k mod) / Sony ECM-717 / 3x Sennheiser ME104
BBox's: Denecke PS-2 / SP-SPSB-9 / SP-SPSB-10 / SP-SPSB-20 / Soundman A3

trading page: www.openingtime.lima-city.de

jcable77

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Re: AT853's one channel very low
« Reply #5 on: April 02, 2017, 11:28:19 AM »
I wouldn't think thats an unmatched caps issue. Maybe a left channel issue with your recorder? I'm having a similar issue with one of my recorders. Thought it might be the mics. Used them last night and they were solid. Dirty channel?

Offline pillowman

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Re: AT853's one channel very low
« Reply #6 on: April 02, 2017, 11:52:40 AM »
I wouldn't think thats an unmatched caps issue. Maybe a left channel issue with your recorder? I'm having a similar issue with one of my recorders. Thought it might be the mics. Used them last night and they were solid. Dirty channel?

no, also chanced the recorder - still the same.
will go on with some contact cleaning, jsut need to know what to use.
btw. I was running 2 rigs so I have a clean master @ home  ;D
thanks !
pm
RECORDERS: Sony PCM-A10 / 3x Sony PCM-M10 / TASCAM DR-2d / Sony NH 600 / Sharp MD-MT180(H) / Sony MZ-R35
MICS: LINE AUDIO CM3, AT853c, ATU853c, hc  (4.7k mod) / Sony ECM-717 / 3x Sennheiser ME104
BBox's: Denecke PS-2 / SP-SPSB-9 / SP-SPSB-10 / SP-SPSB-20 / Soundman A3

trading page: www.openingtime.lima-city.de

Offline u2_fly_2

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Re: AT853's one channel very low
« Reply #7 on: April 05, 2017, 12:16:26 PM »
Don´t know if this will help you but,

Perhaps if you try to pull the cable(s) from the battery-box (if you have a battery box) and then try to put the cable(s) into the battery box again.
If that doesn´t work pull the already cable(s) into the battery box a bit. It might be some small "glitch" with the cable(s).
I had this with my old rig a couple of time, and it helped to unplug and then plug-in again and sligthly turn the cable around until both stereo-channels were fine.

Worth trying, hope you´re able to locate the prob.
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Offline pillowman

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Re: AT853's one channel very low
« Reply #8 on: April 06, 2017, 01:39:39 PM »
last night I gave them a new try after a good friend who is kind of an do-it-yourselfer
cleaned the contacts under the caps or whatever.
I am happy to tell you that the pair now worka like a charme  ;D
Big thanks to all who jumped on my topic with help and hints,
great place here - glad to be part of this community !
cheers and happy taping to all,
pillowman
RECORDERS: Sony PCM-A10 / 3x Sony PCM-M10 / TASCAM DR-2d / Sony NH 600 / Sharp MD-MT180(H) / Sony MZ-R35
MICS: LINE AUDIO CM3, AT853c, ATU853c, hc  (4.7k mod) / Sony ECM-717 / 3x Sennheiser ME104
BBox's: Denecke PS-2 / SP-SPSB-9 / SP-SPSB-10 / SP-SPSB-20 / Soundman A3

trading page: www.openingtime.lima-city.de

 

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