Hi everyone. Im a home theatre noob and I want to build my first real HT (upgrading from logitech z680 5.1 computer speakers). I plan on getting a refurbished Onkyo 603x receiver. I noticed it's a 7.1 receiver, but I don't have the right layout in my room to set up 7.1 properly. So I'm going with a 6.1 setup. So my question is can I set up 6.1 with this receiver? I'm not sure if I just hook up one speaker to the rear surround or what. Any help at all would be appreciated. I'm pretty set on getting this receiver, because I may have the urge to go to 7.1 later down the road. Unless there is a better 7.1 receiver I can get for around 250-300. I'm using Athena Audition speakers (2 f2.2's, 2 bi.2's, c1, r1). Thanks in advance for any help guys!