i too have r4 target and osiris stands and well, they are both great but i prefer the sound on the osiris a wee bit. go figure. either one will surely make you very happy.
sit in your listening chair and measure the the distance from the floor to the middle of your ear. subtract 10 inches and that is the stand height you need. if the stands put the speakers a few inches up or down from your ear, it is not critical as the speaker has fantastic dispersion and the need to compensate is moderated over distance. at 9 1/2 feet the difference is minimal. i would compare tilting them down to just firing them straight out for sound and chose.
regards,
bobby
sit in your listening chair and measure the the distance from the floor to the middle of your ear. subtract 10 inches and that is the stand height you need. if the stands put the speakers a few inches up or down from your ear, it is not critical as the speaker has fantastic dispersion and the need to compensate is moderated over distance. at 9 1/2 feet the difference is minimal. i would compare tilting them down to just firing them straight out for sound and chose.
regards,
bobby