Bought this receiver after reading alot of reviews to power a 2.1 4ohm speaker system for an average sized room. It guarantees to power 6ohm speakers but has plenty of juice for 4ohm. Easy to install with connections clearly marked. It is connected to a PS3, X-Box, HI-FI and LCD TV, you can even play your MP3 or i-player through it. Plenty of ways to adjust the sound to your preference with a bit of tinkering. It is a large piece of kit though and would struggle to fit in a TV unit so it does need plenty of room. I would recommend this system.