When You removed the Drivers, how did you manage it? I ve removed the 4 screws but they appear to be stuck in! I got them used a few months ago, one of the Bass Drivers is distorting.I used ( as standins for XSim ) frd + zma files created by Zilch ( RIP ) and sourced from HERE!
I figure the horn driver is likely a B&C de10 crossed to some 8" woofer that's made by an italian pro driver manufacturer ( such as RCF, B&C, 18Sound, etc. etc. ).
Try the ( frd's + zma's ) from Zilch's S8 mini project ( though I think what's really needed here is a de10 driver on some 8-10" wide axi-symmetrical > round horn ).
Yes, you should post some pics.
🙂