Quote:

how far from the wall do the supplied bumpers put the speaker away from the wall?



Not Very Far (the bumpers are the size of one half of a small gumball).

I tried last night, to mount the QS8's with Banana Plugs attached to the wires...but it was a no go. I took out the plugs, used bare wire, and that should be OK (even with 12 gauge wire).

I too, have the same dilemma, whereby I cannot drill too many holes into the walls, as it's a rental house...and the less holes I make now, the less I will have to patch, when I move out...in a year or two.