Now we're getting into the area of "religious" issues.
I have never used the components in question. But we are often asked to include this type of boutique cap or when doing a speaker project. All of these high-end caps tend to sound wonderful. But the differences are so slight that even after you hear them, you often fail to identify them in A/B comparisons with standard caps (we've often done semi-blind comparisons). I can't say is that I ever heard anything that would cost justify these caps over Sonicaps or any other good high-performance cap.
I look at them more like insurance. If you don't ever want to wonder how much better the speakers would sound if you just spent a little more for this type of high-end cap, spend the money and never worry. But like I said above, I have not heard what I would call significant performance gains. My experience is that they do sound very nice. But in the case of our HT3's, for example, we constantly get rave reviews with standard caps and that is all I tend to use in my personal and demo pairs.
I hope this helps.
- Jim
