Cap tests have to be done very carefully or wrong results can occur. The caps have to be fully burned in, with the outside foil to ground or output, damped and the leads need to be damped. Not doing all the above will result in misfire. Never listen to cap dangling in the air....simply horrible. Never add a bypass cap dangling in the air (many do this). A fellow came onto the Audioasylum tweak forum and complained that adding a Roderstein/Vishay .1 bypass across the main cap just made it bright. I told him to damp the cap and damp the leads and he came back and was amazed that now it was better than no bypass.
Please get some small WA Quantum dots and try on your caps....simply mindblowing. I listened to the JB JFX cap first (no burn in) and found it very lacking. Then I immediately added a WA Quantum dot and it was mucho better. Then I left it burning it for about 2 hours and it was way better. Then burned it in overnight and now even better, then I bypassed the 1uf cap with one or my modified .33 Wima caps....this extended the treble and now was a world class coupling cap combo. I use this on the output of my mods to the Oppo 105 (2 uf JB JFX cap with outside foil to output, WA Quantum dot applied and bypassed with .33 modded Wima (MKP2).
Remember...there are copper foil caps coming in a couple of months from Jupiter Condenser that may be better than cast copper Dueland (reported to be better by several listeners....as in: "hearing things I never heard before"). These caps will be somewhat less expensive than Dueland and easier to get (once in production).
Please get some small WA Quantum dots and try on your caps....simply mindblowing. I listened to the JB JFX cap first (no burn in) and found it very lacking. Then I immediately added a WA Quantum dot and it was mucho better. Then I left it burning it for about 2 hours and it was way better. Then burned it in overnight and now even better, then I bypassed the 1uf cap with one or my modified .33 Wima caps....this extended the treble and now was a world class coupling cap combo. I use this on the output of my mods to the Oppo 105 (2 uf JB JFX cap with outside foil to output, WA Quantum dot applied and bypassed with .33 modded Wima (MKP2).
Remember...there are copper foil caps coming in a couple of months from Jupiter Condenser that may be better than cast copper Dueland (reported to be better by several listeners....as in: "hearing things I never heard before"). These caps will be somewhat less expensive than Dueland and easier to get (once in production).