Speakers Saba IV A

Hello,
I have a question regarding kondensatoren for this speakers Saba IV A. Does anyone know which type of kondensatoren that are originally in the speakers ? I am planning of changing them all. If someone can help me i really appriciate your answer. Any idea where to buy them ?

Regards,
Roy

Hello Schabu,
Thanks for your answer.

i have found some information on the web, looks like there is
two 2,2 uf - volt value unknown ?
one elco 50 uf - volt value unknown ?
one elco 250 uf - volt value unknown ?

in each speaker ?

I havent open up the speakers yet, just searching some information. I thought that it might be a good idea to change the capitors due to the speakers age. Really nice speakers i use them together with a Telefunken Opus 2550