So i briefly asked this before.. I have a Sony powered sub, it connects to my stereo with an rca type connector. If i were to buy a reciever that has sayy 200w sub output on the back, can i plug my powered sub in and will it still work ok? OH and one more thing... if a reciever has two hdmi inputs and one output, the output will put the video on the tv and sound as well.. or will the sound be limited to only the stereo speakers? Will i be able to just turn the stereo speakers down and the tv volume up when i just want to watch cable? Thanks.