Wall Mount recommendations....  

I used a cabinet with adjustable shelf inside.

The shelf itself is then retrofitted with a speaker (omnimount) adjustable bracket. The bottom of the bracket is then attached to acrylic plate which attaches with thumbscrews to my Panny 75U.

The shelf peg holes adjusts in my case 10 inches up or down.
That is the coarse adjustment.

Fine adjusment on pitch or tilt from the speaker mount.
Fine adjustment on rotation is with the rotating portion of the speaker mount.

I will post pictures next week if u like. I still am thinking to drill a hole on the side for wiring and cabling. Nowadays it just slids in front of the cabinet.