Mystery Capacitor and the Tangent RS4 Crossover

@millercarbon
I hear ya, I have been to at least 20 C.E.S as a buyer, not as a vendor. Even on my end, it was easy to see how cutthroat it could be from the vendor side. Years ago, Randy Patton who briefly owned Threshold, Sumo, Meitner, PS Audio and a few others, recommended me to Martin Logan. I had a call from them asking me to come interview in Kansas. I had no interest in moving to Kansas and did not go for an interview, but that started me thinking about doing my own thing. I would still love to produce speakers, but as I eluded to earlier, I’m getting older. I would love to market this 15 inch 2 way.... At this point, not likely.

@timlub Your 15 inch/1inch speaker sounds interesting, particularly coupled with the efficiency rating it sports. Have you considered selling it as a DIY kit? I was looking around and was surprised at the lack of selection of DIY speaker kits. Maybe a part of that problem is related to the fact that audio reviewers generally  ignore kits. For instance if I had not come across reviews of the amp camp amp and the bottlehead crack headphone amp I would not have even considered kits. As it was I did build a Amp Camp Amp and am working on a second because it was fun and it sounds really good.I think that the urge to build and tinker is under exploited in this hobby. Too many people just think it is all about going out and laying down large sums for beautifully finished final products. There is nothing wrong with this mind you, but you don't learn anywhere near as much as when you get more involved.I for one might very well be interested in building a version of your speaker if it were available.

The 15 stays between 5 and 6 ohms at all frequencies, the tweeter stays between 4.3 and 5 ohms.  Any Audiogon member is Welcome to my home in Weldon Spring Mo (St. Louis area) for a listen.

The cap was somewhat damaged as I removed it from the circuit board so I was just a bit concerned about whether it would measure accurately.

That "infamous pink mystery cap" also known as "Tropical Fish Capacitor". Some DIYer still using it for speaker and amplifier building due to its unique mid range sonic signature. Here is an image of 0.022µF 250V 10% tropical fish film cap:
https://www.pedalhackerelectronics.com/Mullard-022uf-250v-Tropical-Fish-Film-Capacitors-p/.022mul.ht...

@imhififan Wow! What a fine piece of information. Good detective work! Now I've got to decide do I go down the rabbit hole of comparing the sound of capacitors. Mmmmm.......very tempting