8 inch
these do dome from the iconic series like the cl 200's , 300's and 400's. These , I estimate , are from around 1980.
Judging by the back and the darkness of the color, there were some variations in that, during the seventies and early eighties.
As you may know, these are not "pounding"woofers. More like Philips and BEO setups, a modest woofer with a lot of range.But not so much the booming range. That's not what they were made for.