First thanks for any answers to my thread. I plan on getting a new receiver with the dts:x and a new led 4k tv by the end of the year. I have aperion audio speakers, looking at their website it looks like the intimus 5t hybrid system. I also have an older glossy finish set of their book shelf speakers, the same size as the rears of the intimus. i dont use the sub that came with the set, i use a hsu stf1. So really i have 2 questions. Should i use the extra 2 speakers in the front up high or on the sides. Second question is should i use the aperion sub along with the hsu. I have heard it is hard to calibrate having 2 subs. right now i have a yamaha htr6130 which is only 5.1 I know it will depend on the receiver that i get as well but which sounds better, up high or sides? will a new receiver let me have the option of doing either set up? thanks again.