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systemawarrior14

Capacitor advice.

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Hi fellow SNA members,

I would like some clarification on the value of a capacitor for replacement on my Jamo D570.

It is the tweeter cap at the top labelled 4.7k. I would like to replace them but am not sure of their value in uf. Any advice is appreciated.

Best regards

Darren.

20190123_181653.thumb.jpg.571fbc1dc5dc6f197195567e447b13d6.jpg

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Guest Muon N'

Clay's suggestion of Jantzen Superior is a good, a musical cap in the affordable price range :thumb:

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2 hours ago, Gieseler Audio said:

 

2 hours ago, mwhouston said:

4.7uf.

Something to ponder.

I have used Auricap before and really liked their neutrality and clean signal. What are the characteristics of a Jantzen cap?

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Guest Muon N'

@systemawarrior14 This site has a cap test with many players, and most folk find the descriptions he has on there to align with their own subjective experiences. Both caps you mention above are in there.

 

http://www.humblehomemadehifi.com/Cap.html

 

He has a few around to test it appears :)

 

 

 

Edited by Muon N'

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Guest Muon N'

@systemawarrior14 sorry, this is something you might also need to know, film caps normally have an inner foil end and an outer foil end, so installed one way they will reject interference (noise) more than if installed the other way.

 

Here is someone testing for outer foil ends with a few different caps using an oscilloscope.

 

http://www.jimmyauw.com/2010/04/24/observing-inner-and-outer-foil-of-some-popular-capacitors/

 

 

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This looks like a cheap Jaycar cap possibly a metallised polyester or polyprop. The safesy bet is to measure it.A second order network on the tweeter is observable from the photo of the crossover . 4.7 uF is the  most likely value together with the glued  air core coil will be the two components  of the 2nd order network ,no dropping resistor to the tweeter is evident though.

The choice of cap should be undertaken to compliment the tweeters sonic signature . ie bright thin sounding tweeters eg some metal domes or hard domes should go with dark sounding cap like Mundorf supreme or Audience auricap, from my own experience over the years.

Tweeters such as soft domes can handle a little more transparency from associated cap such as Jantzen Z silver (could border on bright)or copper. 

Agree with everybody's comments here. 

Even a basic solen mkp type will outperform your current cap. 

Also look at Intertechnik (Audyne caps)

and Clarity Caps Csa high voltage series or film and foils ( metalised caps are not  usually .directional) The Oblligatos premium are excellent for the money too. Audience Auricaps are smooth sounding but expensive for what you get. Dont forget that the capacitors we're talking about here may be more costly than the installed tweeter!

Good luck.

 

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Thanks Cello sweet. I had some old Solen .10 uf from an old Maggie 1.6 crossover and bypassed the tweeter caps on the Jamo . Well I can tell you the difference was immediately noticeable and for the better. This is what has convinced me to replace the entire cap. 

Thanks for your advice.

Best regards

Darren.

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On 17/02/2019 at 12:38 PM, Muon N' said:

If strapped for cash, these are a discontinued cap from Obligatto also in that test.   

Xender Discord Omegle

http://shop.diyhifisupply.com/product/4-7uf-630v-obbligato-euro-film-cap/

 

But it all depends on budget and what sound signature you feel might work well with the Jamos and considering you system sound as a whole..

musical cap in the affordable price range :thumb:

Edited by jojo320

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Hi Jojo,

I ordered some of the Obbligato on Monday. Thought it was worth a try at that price. I have a Yamaha AS1100 amp and Micromega mydac with the Jamo's. The overall sound is quite organic and the tonality of the Jamo's is very nice. There is a chance that the Obbligatos could overly ripen the sound, but if they do I'll just get some Auricaps. 

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Guest Muon N'

I find Auri caps sound a tad synthetic to me, those black case Obligatto caps to my ears sound more real.


See how it goes, let them run in for 50+ hours, I think you will like them. :)

Edited by Muon N'

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Of course they're synthetic, you think they flamin grow on trees?  🤣

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Guest Muon N'
46 minutes ago, bob_m_54 said:

Of course they're synthetic, you think they flamin grow on trees?  🤣

Bob, I said 'sound' as in subjectively sound that way, I was not referring to construction.

 

But if intentionally misconstruing things gets you a giggle, that's cool ;)

Edited by Muon N'
Oops, typo

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Hi there thanks for the advice.I have been wondering this issue!

 

 

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