Mundorf Silver POI caps orientation - diyAudio
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Old 27th October 2003, 07:28 PM   #1
tom1356 is offline tom1356  United States
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Default Mundorf Silver POI caps orientation

Is there a prefered method of instalation with regard to lead polarity when used as coupling caps in a pair of Billie amps?
Thanks
Tom
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Old 27th October 2003, 08:03 PM   #2
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Usually the caps of such quality are marked with respect to the outer foil. There are some methods to find the outer foil and here you can read it how to check orientation: http://www.diyaudio.com/forums/showt...813#post121813 and further, check the comments by jcarr.

I always pay attention to caps orientation when coupling and IME they usually sound best when outer foil is directed to the output. Both polarities will sound substantially different.
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Old 29th October 2003, 07:06 PM   #3
tom1356 is offline tom1356  United States
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Thanks Peter. These dont seem to be marked in any obvious way.

I checked them and installed them last night. So far so good.
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Old 25th August 2007, 07:44 AM   #4
matejS is offline matejS  Slovenia
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Quote:
Originally posted by tom1356
Thanks Peter. These dont seem to be marked in any obvious way.

I checked them and installed them last night. So far so good.
Hi,

I've jsut received them and have the same question about the orientation. Since they do allthe caps in using same procedure, I would kindly ask you to tell me the result of your research: orientation of mundorf solver/oil caps.

Thanks,
Matej
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Old 25th August 2007, 04:15 PM   #5
MRupp is offline MRupp  Germany
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This type of cap actually consists of 2 caps in series, same as ERO KP1832, Arcotronics KP 1.72, and probably some other caps used for "pulse applications". As such it should be absolutely symmetrical, i.e. with two outer foils and an "inner foil" that bridges the two.
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Old 30th March 2016, 10:39 PM   #6
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I have tested Oscilloscope on Mundorfs and others:

M- Cap Supreme Silver-oil All 14 pcs of different badge production All ware : opposite ( f- in name Mundorf on capacitor is the inner foil) Outer foil is where Mundorf start.

Those ware the same of All my Mundorfs 20 Pcs silver oil / silver Gold and Silver Gold Oil. Of different production periods from 2010 till 2014!

Duelund VSF and Duelund Cast 100v ware where the D- from Duelund starts the innermost foil. The last d letter from Duelund is the outermost foil.

Jantzen Audio Superior Z-Cap inner foil is as Duelund case. So innerfoi is on the side where J- from word Janzen starts.

Intertechnik Audyn True Copper Cap MKP 630VDC – this cap was the only one that was different story. 4 pcs ware the came case as Jantzen and Duelund. And 2 pcs ware the opposite direction. This was all folks. I hoop it will help you.
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Old 31st March 2016, 10:45 AM   #7
DF96 is offline DF96  England
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To reduce pickup of hum/noise you connect the outer foil to the lowest impedance end. In most cases this is the source end e.g. the previous anode. In any case the difference in orientation will be small, unless the cap has the wrong value.
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Old 4th April 2016, 02:35 PM   #8
dazzz is offline dazzz  Israel
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in the mundorf MCap® SUPREME
the shorter lead also indicates the capacitor's outer foil.
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Old 10th April 2016, 03:59 AM   #9
Bare is offline Bare  Canada
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Erm Try and see :-) IF you can't discern any Audible replicable difference then .. Just Maybe.. it's Irrelevant ??
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Old 10th April 2016, 06:46 AM   #10
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Hi

On my Rike Qcaps 5,6uf, it is easy to hear the difference ,only one direktion sound best

on my mundorf i can not hear the difference,,tried with supreme and silver in oil

Best Bjarne
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