I purchased a pair of passive variety as I had an amp already and in future might add some more in parallel. The build quality is very good indeed. These are a solid box, albeit a bit heavy but the finish is very good.
The sound did not blow me away at first, sure they’re clear and are considered (full range) but left a little to be desired, after some eq tweaking I warmed to them, they lack low end in my opinion - no problem if pairing with the subs as I think I will. however I feel the active versions would be a better buy with the dsp built in. They have the potential to sound great