A reappearance of Black Diamond Racing?

@slaw...thanks for the update.  I tried to find mine, but I either sold them or put them "somewhere I could find them", of course, I can't.

@geoffkait 

I had the feeling the felt would have that effect and will certainly remember that when I put them into service.

I'm not feeling any buyer's remorse so far. As the weekend progresses, and I listen to more familiar recordings, I'll post.

One thing I've noticed throughout the years in audio...when a product is labeled "gold" or "silver", that is not by chance.....there is a thought behind it. Gold is mostly thought of as a smooth. warm presentation. Silver is thought of as a more transparent. revealing presentation.
I mention this because these cones are labeled "Golden Sound". And so far on lesser known lps, they live up to their name. And this is a good thing!

So, like I said, I cannot compare right now except only as a replacement for the rubber feet. I just finished listening to a very familiar lp, "Love Over Gold". The presentation is very quiet, quieter than I’ve experienced before in my system. This leads to greater/more natural tonality, no loss of any part of the frequency range. My system is sounding better than ever before.

I can hardly wait for the installation of the new wall mount system. Then, all of my front end components will be decoupled from the wall/room.

I'm struggling to get a basis for the cones. I will not be able to until later.I think what is "clear"...is that I'm getting close to the full potential of my K&K phono pre-amp. Lovin'it!