Heybrook hb3 s2 problem

[Coa coa]

Like a title said
Heybrook hb3 series 2

I bought them two days ago, and the are not in original condition...
Besides of the tweets are not original(sony e71 tweet) i find out that
crossover isn’t his also...
So,if somone can help me with schematic of original crossover to restore theres sound .


And can u give me information of bass driver unit ,to check if main is ok?

Thanks in advance

Cheers