I only have 2 small Adam A3X Nearfield. So you weigh less than 5 kg. Thus, it is of course only once no great art of this wall brackets, "to bear" such boxes. However, I believe that the holder would really contribute a great deal more and keep their "promise". I myself have used the 4 holes per bracket only 2 - holds great! You make an overall impression of high quality. The plastic covers could sit on a little harder on the wall plate, but is not so bad. The setting is great in my opinion. So overall I'm really excited. Can I recommend.