O.B.F sound system

Greetings, new guy here!
I listed to O.B.F sound system last summer at Electric Castle [music festival in Transylvania, Romania] and it was so powerful. Was wondering if you could be able to recognize what kind of speakers are they using. I attached a photo of their sound system, maybe it will be easier for you to recognize. The only thing that I was capable of recognizing were the 4 super scoopers. Cheers!

in the pic that u have posted is about the old version of obf stack... in the pic posted just on bass u can see 3 different model of speakers, 2 about turbomax... now i think that is all about turbomax, and the stack is more powerfull and clean... proper sound imo!

Hi, thank you for the reply, appreciate it. Now I was wondering, that stack, what's it made from? I'm asking because I would like to build a similar one, but smaller. And the only thing I recognize from there are the superscoopers but the rest..can't identify them.