Hi guys I'm new to the home theatre game so I have some questions. My set up is a denon avr1712 polk tsi 200 for my fronts a cs1 series 2 center channel, rm 7 satellites for the surrounds and 2 psw 505 subs. So my question is should I get a separate amp to get more power out of my speakers? And if so how does a separate amp hook up to my avr? Sorry if this is a dumb question I'm a newb when it comes to this stuff.