Hi,
Welcome to the VMPS Forum!
Now, the speakers; I can't really tell what model they are. But, in looking at the build, and the crossover, they don't look to me like a speaker designed by Brian. So, any chance that you can provide a picture of the whole front of the speaker? That would help. Once you get some additional pictures posted, maybe owners here can figure something out.
Good luck.
Stimpy