I have a set of Polks that I inherited: two rt12's, a csi40, and two rear surrounds without a label. I am looking to upgrade the system with a new reciever for the hdmi (thinking about the Onkyo sr705) and was thinking about getting two more speakers in the same quality range to bring the system up to 7.1 for my up and coming games/theatre room. So, the question is: what kind of new Polk's to get? I am not even really sure what kind of speakers the side ones should be, are they supposed to be like the rt12's, two floorstanding loudpseakers? Thanks.
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