Great!
3- 4 feet is the general starting point..., it is the distance from behind the speaker, to the wall directly behind the speaker, also called the front listening wall, because you are facing it.
If the "back wall in your room" is the one with the windows then yes that would work there too, you should start with the links below, for best positioning.
Here are some links on speaker placement:
The first link, has 3 additional links at the bottom of the page, regarding speaker placement.
http://www.gcaudio.com/resources/howtos/speakerplacement.html
http://www.thielaudio.com/THIEL_Site05/PDF_files/PDF_owner_info/CS3_7ownerinfo.pdf
Good Luck,
Rich
3- 4 feet is the general starting point..., it is the distance from behind the speaker, to the wall directly behind the speaker, also called the front listening wall, because you are facing it.
If the "back wall in your room" is the one with the windows then yes that would work there too, you should start with the links below, for best positioning.
Here are some links on speaker placement:
The first link, has 3 additional links at the bottom of the page, regarding speaker placement.
http://www.gcaudio.com/resources/howtos/speakerplacement.html
http://www.thielaudio.com/THIEL_Site05/PDF_files/PDF_owner_info/CS3_7ownerinfo.pdf
Good Luck,
Rich