First off let me say I am (almost) completely ignorant on setting up HT systems.
I have an old Onkyo TX-SR304B that puts out only 65w per channel. I bought it from Onkyo as part of a "home theater in a box" deal that included 5 surround speakers and a powered subwoofer - all which are decent enough for the smallish spare room in which they are in, and also in a duplex in which I cannot crank anything too loud anyways.
However, I am thinking of starting to get new speakers for overall fuller and better sound when listening to music and watching movies. I've been looking into the Polk Audio Monitor 70s as they seem to get great reviews, and can be picked up now for under $400 a pair refurbished. My question is will my receiver be adequate enough for the time being to get much out of these speakers? Also, when setting up the Onkyo you have to select "small or large" speakers and MHz, etc. If I were to buy these speakers I'd all of a sudden have two large speakers, with the rest being small - what options should I select? Any information would be helpful before I spend the money on these speakers. Down the line I would like to upgrade the receiver and other speakers as well. So, please bare in mind that for the time being I will be sticking with the current setup.
Thanks in advance!