Hi, so I was looking into 4ohm speakers and found out that they need more powers to drive them. So the receiver I am getting might be the Onkyo TX-NR609 or an Onkyo HT-RC260 depending on my budget. The front channel speakers I am looking at are the Polk Audio LSi9. Well, I thought it was as simple as plugging the Polk Audio LSi9 to the receiver I am going to get, but it seems like both the receivers I might get don't have enough power to drive the Polk Audio LSi9, which means that I have to get an amplifier. I have searched on google on how to connect amplifier to receiver, but can't seem to find any tutorials. I wanted a simple system at first meaning one reciever and 5 separate speakers and a subwoofer, but now I have to add a amplifier which is something I tried to avoid. My Questions: 1. Since the Polk Audio LSi9 are rated at 4ohm, do I need an amplifier? Will the two receiver I posted above be able to handle a pair of the Polk Audio LSi9 as front channel (I am also going to bi-amp it) as well as handle a set of 8ohm bookshelf speakers as surround and a Polk Audio PSW505? 2. Does anyone know how to hookup a amplifier to a receiver (can't find any on google nor youtube)? 3. JBL L830 or Polk Audio LSi9 as front channel speakers? Thanks.