Picked these up from Madisound. Look nice, we'll see how they measure and sound:
First issue: no polarity indication at all, whoops.
More data to come soon.
= Howard Stark: "This is the key to the future. I'm limited by the technology of my time, but one day you'll figure this out."
Comments
In your last photo I see a + sign next to the terminal on the right. They are pressed into the bakelight terminal strip.
As I understand it, this is a Fountek made copy of the Audible Physic RAM2 driver, currently available as a mid-high in this component set:
https://www.slaacoustics.com/products/ram-2-6-q-component-set?variant=45088689037
I tried waybacking the original link to the RAM2, but it's gone and Archive did not crawl the page.
InDIYana Event Website
InDIYana Event Website