A customer of mine is doing a bit of castle-dunging, and she brought this stuff to me. I know very little about stereo stuff, but there are many experts here. Her hubby dies 20 or so years ago, and he liked things...
This one is pretty obvious. Likely out of his early 80's 190E.
These are out of my range. There are three of them.


These were in the same pile, but are automotive, I guess. The above are 8 ohm. These are 4 ohm. Three, as well.

Then we have this stuff. He was building speakers for his house?

In reply to Streetwiseguy :
That looks like a part for a 9000 and goes new for around $100.