Duelund cast Pio Hybrid Copper/Silver or Rs series with Silver Bypass PIO

There are 2 excellent capaciyors I am currently using  in my preamp no direct voupkjng caps it us transformer coupled but has a big Mundorf Supreme 22uf 
Very respectable I added 15% ,the new Duelund Jam  using their latest using a lite tin over Copper which for sure opens up the top a bit in s paper oil, but in a Aluminum housing not quite as fleshed out as the cast but close at half the cost 
Very nice depth and instruments have a nice accurate tonal balance.
On the Dpeskrr end I gave a Huge 68uf  Clarity Csa cap  the Jupiter 2.2 ads some realism and depth  the last cap Brand new Jsntzen Alumen Z is a Aluminum foil with very very thin dialectric very smooth but fadt and detailed grest imaging 
A great match a very easy cap to like blends with most other caps. 
Priced very nice I put in a pr of 4.7uf caps  the Voxativ drivers really come alive 
A new budget favorite cap  they only go to 10uf.  Hifi collective is the only place yo buy , order the FedEx option delivered in 3 business days . 
Both Duelund Jam, and Jantzen  Alumen Z foil  caps  would be a great combo 
The Jsntzen only 100v ,for Loudspeakers. I AM ARE 630v and are tanks a 3.3uf 
85mmx 75mm and over 1 lb each.

The New Duelund Tinned Copper,paper in oil  .1uf bypass caps are Excellent 
The New Tinned Copper which their new Jam caps have which I have in my preamp are truly excellent they have a aluminum case ,not quite as good as the top paper case.  The Tinned  Copper bypass cap I just got  .my brother and his friend say these little caps truly add depth,as well as air to loudspeakers.
They also have a Silver paper in oil , a little better detail ,then the Copper bypass 
But not as much body. And at 600volt  can be used anywhere.

I have seen little mention of the VH Audio Copper- Teflon caps I have been using 
these and for resolution none better ,but take up to 4-500 hours runin time.they are flighty warm ,but not much speed and resolution
for a bit more air  and  depth the Duelunds are vest