jbcapacitors blog

Sometimes, customer will be confused by the so-called "outer foil" or the "inner foil"of our audio capacitors.
Today we would like to tell you more about this point. I am sure you will understand by below customers explanation.

" I have all my JFX caps soldered in at the moment, but plan to try some Jensen caps in place o them, so i will try to do the test as well. 
With a sensitive millivolt AC meter i think you could see the difference just by connecting it one way and touching the cap. 

The induced mains hum will be higher when the outermost foil is connected to the anode of the meter(maybe).

I think more and more that this is an example of "audiophile", which means that people searcing for better and better sound, and not always exactly knowing the technical aspects of it, they will assume one way is better because another cap manufacturer said so.

I feel that the JFX is a solid performer in either direction used(after all it is a bipolar cap as you stated), and i feel that the price/performance ratio is excellent."