crossover caps. bipolar electros then solen then what?

KevinLee · 5th May 2005, 02:27 PM

Hello All,

I am upgrading some speaker crossovers and an considering Solen fastcaps because of the price.

What would be the next 'step-up' in quality after Solen?

Any other suggestions for affordable film caps with good performance?

Thanks

KevinLee

Magura · 5th May 2005, 02:41 PM

PP in oil, or PP in nitrogen if you want the lowest loss factor caps around......counting out PTFE in nitrogen

Magura

electropt · 5th May 2005, 02:56 PM

Magura,

If PP is the dielectric, what is the use for oil and N?

Kevin,

Unfortunatly there are no big film and foil caps available for a resonable price.

If you can't get film/foil ones get metalized. Poliprop is a good dielectric, then you have PTFE and then GoreTex (foamed PTFE).

Solen are fine, but try to get the originals from SCR (who makes them for Solen) they are usualy cheaper.

Hugo

KevinLee · 6th May 2005, 01:59 AM

bump^

audiobomber · 6th May 2005, 11:18 AM

Quote:

Originally posted by KevinLee
What would be the next 'step-up' in quality after Solen?

Any other suggestions for affordable film caps with good performance?

Auricap is a big step up, but a fair price leap too. You won't mind the price after you hear them.

DirkD · 6th May 2005, 11:23 AM

I have found the Solen film and Foil caps (the white ones) to be very good and not that expensive, You would have to get them from Solen though.

Dirk

00940 · 6th May 2005, 12:15 PM

You can also get industrial Motor Run MKP caps. Cheap and good sounding. See here for some tests on crossover caps : http://home.versatel.nl/geenius/Cap.html .

Such caps are also often on ebay too.

Magura · 6th May 2005, 06:36 PM

PP in oil from Vishay have given me the best results for filters so far, I haven't had time to experiment with the Siemens PP in nitrogen yet.

http://www2.hififorum.nu/forum/topic.asp?TOPIC_ID=38453

Look at the pic like 2/3rd's down the page.

Magura

Magura · 6th May 2005, 06:49 PM

http://www.briangt.com/gallery/magura/PICT0001

This is the theoretically best cap possible. The loss factor is lower than anything else AFAIK.

Magura

electropt · 6th May 2005, 07:39 PM

Magura,

What would be the ESL on those beasts?

The silver ones have oil probably to dissipate some heat, as they are usualy used in pulse or motor aplications, just like the used in tesla coils. The oil is not used as dielectic.

The siemens have N2 inside as dielectric or to prevent corona? Quite interesting... Do you know where I can find more info on them?

Regards,

Hugo

5th May 2005, 02:27 PM	#1
KevinLee diyAudio Member Join Date: Oct 2002 Location: Winnipeg MB Canada	crossover caps. bipolar electros then solen then what? Hello All, I am upgrading some speaker crossovers and an considering Solen fastcaps because of the price. What would be the next 'step-up' in quality after Solen? Any other suggestions for affordable film caps with good performance? Thanks KevinLee

5th May 2005, 02:41 PM	#2
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	PP in oil, or PP in nitrogen if you want the lowest loss factor caps around......counting out PTFE in nitrogen Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

6th May 2005, 12:15 PM	#7
00940 diyAudio Member Join Date: Sep 2003 Location: Paris	You can also get industrial Motor Run MKP caps. Cheap and good sounding. See here for some tests on crossover caps : http://home.versatel.nl/geenius/Cap.html . Such caps are also often on ebay too. __________________ Ben.

6th May 2005, 06:36 PM	#8
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	PP in oil from Vishay have given me the best results for filters so far, I haven't had time to experiment with the Siemens PP in nitrogen yet. http://www2.hififorum.nu/forum/topic.asp?TOPIC_ID=38453 Look at the pic like 2/3rd's down the page. Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

6th May 2005, 06:49 PM	#9
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	http://www.briangt.com/gallery/magura/PICT0001 This is the theoretically best cap possible. The loss factor is lower than anything else AFAIK. Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com


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5th May 2005, 02:56 PM	#3
electropt diyAudio Member Join Date: Jun 2004 Location: Lisboa	Magura, If PP is the dielectric, what is the use for oil and N? Kevin, Unfortunatly there are no big film and foil caps available for a resonable price. If you can't get film/foil ones get metalized. Poliprop is a good dielectric, then you have PTFE and then GoreTex (foamed PTFE). Solen are fine, but try to get the originals from SCR (who makes them for Solen) they are usualy cheaper. Hugo

6th May 2005, 01:59 AM	#4
KevinLee diyAudio Member Join Date: Oct 2002 Location: Winnipeg MB Canada	bump^

6th May 2005, 11:23 AM	#6
DirkD diyAudio Member Join Date: May 2004 Location: Paarl, South africa	I have found the Solen film and Foil caps (the white ones) to be very good and not that expensive, You would have to get them from Solen though. Dirk

6th May 2005, 07:39 PM	#10
electropt diyAudio Member Join Date: Jun 2004 Location: Lisboa	Magura, What would be the ESL on those beasts? The silver ones have oil probably to dissipate some heat, as they are usualy used in pulse or motor aplications, just like the used in tesla coils. The oil is not used as dielectic. The siemens have N2 inside as dielectric or to prevent corona? Quite interesting... Do you know where I can find more info on them? Regards, Hugo

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