Interesting. I’m pretty sure he was just describing the speaker cable as being from microwave facility use. I know his speaker cable is that mil-spec silver plated copper. I used that for years as well. On the website he is still showing only the silver top of the line interconnects and the copper “DAG” versions.
https://www.decware.com/newsite/newdsr.htm
Yes due to availability Steve has moved from Jupiter beeswax caps to Miflex copper foil.I have those in my ZROCK2 now, put in place by Steve replacing the Jupiter caps I had in there for years and they are very similar if perhaps a bit more transparent and a tiny bit leaner. The pandemic supply changes have I notice impacted a lot of industries! And pricing. I think he sells fewer SE84UFO3 than other amps and it doesn’t surprise me that he did not have a pair on hand. Stock, without the 25th anniversary mods it’s not the same amp the SE84UFO25 is, but with the mods he put in mine it’s right there circuit wise with a bit more power, and it came out about the same price as the SE84UFO25 without the fancy green chassis and meters, which aren’t my aesthetic. I think you’ll be quite happy with your choice.
I’m certainly interested in your speaker experience and impressions. Take your time.