Installation is relatively easy if you have 3 arms !!!! It is an evil Frickelei to connect the speaker cables, while the speaker
hold and fix the whole thing with the screw! The included "tool" though sufficient, but is fiddly job.
Better would be an Allen key with T-handle to lock the screws.
Should one of the speaker, as in my case, in the upper left corner are assembled, everything becomes a game of patience. The screw for locking
located to the left, so keep sufficient distance !! :-)
Conclusion: All in all a good price for the holders, good quality and ausfühliche instructions !! There should be only enough time for the assembly
welcome, this is not "just" done.