Help identifying Janszen speakers and their woofers

[Vaaldor]

This is a long shot, but haven’t had any luck elsewhere. I picked up a couple of speakers at an estate sale based solely on the brand and without having a chance to really look at them or test them. These are Janszen Dynamics, not ESLs. Nobody really seems to know about them, including David Janszen. My understanding is that the Janszen brand has been sold a few times and these are likely Janszen in name only.

That said, I have no idea if these are any good, if they are worth the time and money to fix them up or eve where to start looking for parts. One of the woofers is blown. I pulled it out to try to look up a replacement part, but it isn’t clearly branded, either. The cones look like Acoustic Receiver cones, but the back doesn’t. It is my understanding that Janszen used to use AR woofers on their ESL hybrids, so this seems like as good a place as any to ask. Does anybody recognize this? Can you point me In the direction of a replacement?

Thanks!

 

edited to add picture of the speakers in question.