bought the brackets for the satellite from Klipsch HD Theater 500. The screws for wall mounting are too small. The screws for fixing the boxes are too short (at least the ones I have to use for my Klipschboxen, there are 3 different included) when inserting the (enclosed, elongated visible in the photo) spacer between bracket and box. One can live without, the optics is then but not sooo nice if you just looked at (only the side - from the front no problem). A box weighs about 1 kg. In my estimation, really should not be used boxes heavier than about 2 kilos. Thus one gets a sense: the brackets are about 10 cm long, 4 cm wide and are made up on the set screw entirely of plastic. Since you can not have elephants dranschrauben! The locking screw (large Phillips) is easy to use. Horizontal adjustment: pan 180 degrees (90 / page), vertical adjustment range about 40 degrees (20 / direction). The look is quite appealing and price / performance is imho ok.