6/7 for 7.1 help pls!

verdog
verdog Posts: 1
edited November 2007 in Speakers
Hello! First off, thank you for your help.

I am looking to add 2 more speakers(in-ceiling) to my home theater.

My set-up is:
TV: Mitsu 65734
A/V: Onkyo 705
BD: Sony BDP-s500
Fronts: Rti12's
Sub: PSW 505
Center: CS2
Surround: RC80i

myth1xl9.jpg

My question: Should I add the RC60i's as rears? OR can I upgrade to the SC80's AND easily(back out clamps/same cutout) move the RC's to the rear?

These are for surround/movie purposes only. When listen to music I run 2.1.