Brno Jewish Records

I will be visiting Brno in September and wish to try and find some records on my Great Grandfather - David Klingenberger- who had a shop in the town centre. ( And my great uncles Moritz and Berthold Klingenberger, who I think also lived in Brno)

And my Grandfather- Max Herschan- who had an account with a local Brno bank branch, and lived here prior to his deportation to Riga.

Where would any records be held?

Is there a Moravian State archive and how can you access it or would I be better contacting via the local Jewish Community- ( if so who to contact).

Any advice greatly appreciated

Nigel Hamilton