Boutique caps in oil... reliable?

I've never had a Mundorf or V-Cap leak on me.

@roxy54 

I have nothing but good to say about the sonic performance of the Duelunds. Organic, beautiful, and zero electronic signature. Well worth the (gulp) price.

Yes, very impressive natural presentation of music. V-Caps are also very good, it just depends on what one is seeking sonically. I’ve used the Teflon tin foil V-Caps in the past. Duelund CAST is my preference. YMMV.

Charles

I have a dealer that has been looking for a long time for paper in oil caps for my speaker.  The particular caps are probably 70 years old or so.  They can last a very long time, and some vintage caps do deliver sonically.

Only issue I've had with oil caps over many years was Jensen copper foil in Cary amp, well known issue with those caps. Duelund CAST is now my preference by large margin vs others.

@charles1dad -

What makes the Blackgate capacitors special ?

     I can state, as a certainty, when they were used to upgrade existing electrolytics: the component's performance was enhanced.  In my experience: very few ever disputed that.

     What MADE them so special would be more apropos, as they were discontinued about 15-20 years ago, much to my dismay.    When that happened: the remaining stocks were quickly snatched up.

     Far as what made them different/better/special: something about the use of graphite impregnated paper as the cathode and the oxide that formed on the aluminum foil (anode) becoming the dielectric.    Probably why they took forever to settle into their ultimate, wonderful presentation.    At least: that's how it seemed, whenever used in an audio signal path.

     The catalog of the Black Gates was extensive.    Just about everything/anything in electrolytics a POOGEr (ala Walt Jung) could ever need/want, to enhance their listening experience.

      First thing I searched for, when I bought my Cary monoblocks, was an appropriate octet of their WKz caps, that were dynamite in tube amp power supplies.

                              UNOBTAINIUM/BUMMER!