Purchased a pair of JBL L820's to use as rear surronds. I wanted to mount them at the top of my wall and angle them down towards the listening area. They come with brackets but they are only made to be mounted straight against the wall. I have looked at all types of different speaker mounts and can't find any that will work to attach to the speaker and allow me to angle it down short of drilling holes in the box. The speakers come with pre drilled mounting holes 8.5" apart and each speaker weighs almost 20lbs. Please any help would be very much appreciated. Thanks
