Info on JBL mfg. in Denmark (4771A, 4788A)

I have recently acquired a pair of JBL 4771A speakers for PA use, along with a pair of 4788A TCB subwoofers. All with original, or at least correct drivers.
The 4771A has two 2226H, a 2445J with 2380 horn and two 2404H's. The 4788A subs has two 2240H's each and is the classic TCB (Triple Chamber Bandpass) system.
The entire system use a custom built 4 way crossover built in Denmark by Poul Petersen, specifically made for these speakers.

I noticed that the back plate on the speakers said Made in Denmark. Does anyone know anything about who, where and when JBL manufactured these speakers in Denmark?
There seems to be missing some spec sheets for the 4771A on the internet, only the 4770 is to be found. It seems that these JBL Sound Power 4700-series were very popular here in Denmark back in the day, but not that many other places? Or were they manufactured under different model numbers? I've found the 4800 series, but it seems to be older, and the 4870 uses 2225H instead of 2226H drivers for LF.

If anyone knows more about the TCB subs or the Sound Power 4700 series, please share.:)