Jupiter Copper Foil, Paper & Wax Cap Versus Jensen Cap 0.10uF 630Vdc Copper Foil Ceramic

My experience is the Jensen’s, in tube gear and dacs, are just darker than the Jupiter or Duelund copper foil caps. I also modify and upgrade gear for a living and do all manner of upgrades with caps. Jensen are good caps, but not as good in the micro details, resolving , and air as the Jupiter copper foil or Duelund. These areas seem to reflect the sonic need of the OP so I am specifically talking about this “presence” area of the spectrum. . Vcaps copper are also more extended and resolving.

A good option, keeping what you now have, is to bypass your Jensen with the Duelund pure silver .01uf bypass cap from Parts Connextion. I have had great results with this combo in electronics. You will definitely get more air, sparkle and resolution. More realism! 

@grannyring 
@audioman58 
Thank you both for your comments and advice. That's a very interesting comment re: bypassing with a Duelund -01 bypass cap.
Thank you, Bob 

Granny ring I agree ,I use the Duelunds as my main best seller in my Loudspeaker Clarifiers a bit pricy $100 each but ,give them a solid 200 hours and they truly do open up the soundstage and micro-details

@grannyring 
@audioman58 

Yes, I definately would like tom add the chararcteristics of the Duelunds a the Jensen are 'dark' and I am missing the higher and extended frequencies that i enjoy. 
The bypass caps are still $100 each and I am wondering whether to just go the whole hog and purchase the Duelund Capacitor 0.1uF 630Vdc CAST-PIO-Cu (Sn).

How close would the Jensen plus Duelund combination come to sounding as good as the Duelund Capacitor 0.1uF 630Vdc CAST-PIO-Cu (Sn)? I think this is where my final decision lies.

Thx, Bob

The added $100s extra for a .01 cast is not worth it the value is 
so small , thst is why the Duelund .01 ur Bypass cap is used 
if you wanted a Big difference then justget the wallet out 
what size is the tweeter capacitor 2-3uf  ? If so over $ 1k for 2 cast caps . The Duelund Bypass caps I hav3 in my speaker well worth the extra $$, and for the record just look st my feedback 
on the Duelund Zobel  Clarifiers I Make ,they work cleaning up all high frequency noise and work with Any Speaker, a simple 
but very effective upgrade. Unless you have tried these you can’t 
make a educated statement .To a true Audiophile even a few % is well worth a small purchase.