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Anybody familiar with Mundorf silver&oil caps

I am planning to use 3.9uF Mundorf silver oils as output coupling caps in my phono stage. ( The stock coupling caps consists of a paired 4.7uF and 3.3uf polypropylenes )

I have a couple of 0.022uF TFTF V-Caps lying around. Would there be any benefit in bypassing the 3.9uF Mundorf with the smaller V-Caps or am I just wasting my time?

Generally I do not like bypassing coupling caps, but the 3.9uF is somewhat big and I am concerned that it is going to be a little slow.

I know I can always try and see what it sounds like, but the V-Caps are unused, so if there would be zero benefit I’d rather leave them in unused state for the possibility of selling or swapping them out later on.

Comments/thoughts/experiences would be appreciated.

Thanks
Paul
pauly

Showing 4 responses by ridgestreetaudio

ridgestreetaudio
221 posts
 
Ralph....if it's useful for you you:

http://www.duelundaudio.com/DIY/VSF/index.htm

They're promoted specifically for Loudspeakers so I'm not sure how useful that is for you.

Cheers!

Robert
RSAD
ridgestreetaudio
221 posts
 
Hi Pauly

You should really enjoy the Mundorf Silver/Oil. Very musical cap and Ralph is right - avoid bypassing if you can.

Haven't tried the VCap in anything yet though I plan to soon. I'll be trying some Dueland VSF caps too. Ralph, do you have any experience with the Dueland caps? Your impressions?

Cheers!
Robert
RSAD
ridgestreetaudio
221 posts
 
Hi Jade.

Thank You for the detailed overview. Kind of you!

Interesting your experiences mirror my suspicions between the V-Cap and Dueland VSF. I'm anxious to form my own impressions.

Being that both caps are foil types (which I generally prefer over metalized types), I'll definitely condition them on our 'dharma for about 168 hours before I make any serious comparisons. I did this with the Mundorf caps and that settled them very nicely - certainly beyond what the music system could do by itself. Nice tip for anyone investigating the different sonic character of different caps. As you mentioned Jade, some caps take a (long) while to settle and that can get kind of discouraging and if they're being settled in using a music system, I wonder if they ever fully settle in.

Cheers!
Robert
RSAD
ridgestreetaudio
221 posts
 
Hi Ralph.
...it looks like we could not use the Duelands as the voltages are far too low.

I suspect that's why they specifically recommended the VSF for loudspeaker applications - the lower voltage rating of 100v along with their physical parameters doesn't appear to make them practical a lot of electronics. I would be a little concerned too about the materials stability in the harsher heat environments of a lot of electronics.

Cheers!
Robert
RSAD
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