Hi all, I am newly registered to this forum, and like to greet to all people.

I plan to make a home theater system for my bedroom, which is about 12 x 12 ft, I have owned a Panasonic AV control stereo SA-HT260, it is a package type system, which has 5 speakers and a subwoofer. It is an old system, I can hardly notice any "surround sound", I know, it's time for a new one, well, here I am, please be my adviser, I thank you all.

1) what is the difference between 5.1, 6.1 and 7.1? which one is right for a small room?

2) Which receiver should I pick, I have $300 now, I want good deal stuff, but must have "theater" sound quality?

3) No more package system, build one myself? How? Where to start?

thank you