You don't need a specialist for installing acoustic panels - a trusted contractor, building professional, or handy-man should be able easily to install panels in a larger scale application. Or, just do it yourself!
For the best acoustical results, make sure your panels are positioned to face the sound source and, ideally, at the points of first deflection.
Plan first, then install - create a simple sketch or cut out shapes to mimic your panels and place them on the wall (don't be afraid of creativity - we've seen spectacular designs accomplished with simple square panels).
Use a laser level or snap a chalk line when hanging several panels at the same height over one or more walls.
Don't over tighten screws when affixing panel clips to the wall - when clips are too tight, panels tend not to hang flat.
Try a wood shim between your panel clip and the wall to give your panel the appearance of hanging flat, even if your wall surface is not flat.
When hanging panels larger than 2'x3' in a horizontal position, use 2 clips (some extra large panels may require 3 or more clips) and space them about 6 inches in from the corners.