Diezel Germany / Diezel CA

Can someone point me to posts or threads concerning Germany/ California explanation. I‘m new to Diezel and just purchased a mint Einstein and a mint fl412 and just trying to understand the differences. I wasn’t even aware of this until someone mentioned something to me about things being built in the states also.

Thanks in advance.

All amps are made in the German factory by Peter and his crew,
Most of the Cabs in the United States are made here, probably in California.

Thanks!!