24mm birch plywood, maybe I'll after all get something done :)
Heads-up for drakmin, I got 'em! And also for Jipa, you propably dont have to hate me to the death :)
I'll see if I start building it at the weekend.
I also got way too much left-overs from the place I bought these O_o I may have to build a subwoofer, even if the plywood isn't the best for it.