So I've been running an Onkyo HT-R380 for about 2 years and using the speakers that came with the HTIB package for this system. They're ok but definitely not blowing me away or anything.
I've decided to upgrade to Polk Monitor 60 or 70 speakers (and accompanying center channel). I may or may not get a new subwoofer (the one that came with the Onkyo is passive and very very weak) but I'm not sure if I have to upgrade my receiver or not.
Any advice would be appreciated - sorry I'm a total newb and don't know many of the terms. If I need to buy a new receiver my budget is no more than $400 USD. It would be nice to have more than 3 HDMI inputs but I'm really not picky on features - I just want the new Polk speakers to sound awesome. Thanks!