Hello.
I have a woofer whose brand name is not printed on it.
But I do see numbers on it.
The cone has BC 143A on the edge of it.
The cone is black and has a little sheen. The dust cap is a rubber-like material, it's very soft and can be pressed in like a rubber ball.
It's about 7 inches.
I'll try to take a picture of it.
Does anyone have an idea of what it is?