A:AnswerPut you speaker on the mount then hold them up to Mark where you’ll drill. Every speaker is a different size so just saying 4” down might be to close to the ceiling when speakers are attached.
A:AnswerYou will have to do the same thing I had to do. There is hardware included to mount a bracket on the back of the speakers. I have Sony rear surround speakers. They are light enough to mount on the wall. Try to anchor to a wall stud!