Presently, I have a L/C/R and sub and want to add the QS8 to complete a 5.1 setup. My problem is that my room will not allow true side placement so I'll have to position the QS8's at about 20 degrees behind my listening position. My amp/receiver will permit connection of both rears and sides. Given that I want these to function in my 5.1 setup as well as certain music listening, is it better to connect the QS8 via the rear output or the side output on my amp/receiver? Does it matter?

Appreciate any advice.