Thanks guys!
Woodsyi:
> The micros are for 1st reflection points. Should I have more space between the wall and the traps <
Early reflections are mainly a mid and high frequency problem, so putting MicroTraps flat on the wall works fine for that. However, adding a space extends their absorption to lower frequencies, which is always useful.
Further, spacing our panels off the walls also extends their physical reach to absorb a larger area than their 2x4 foot size. Since the rear surface also absorbs, an air gap lets sound that strikes the wall near the panel bounce off the wall and get into the rear. So it's worth having a gap up to several inches if that's convenient and the look is acceptable.
--Ethan