Owned the complete system for 10 yrs at least and no problems at all. I've added a 10" powered sub by Definitive Audio because it didn't come with one when I bought it. Just use large enough speaker wire and High quality grounded Sub cable along with the best audio cables your TV, BlueRay, and other receivers can support such as fiber optic. With that and the correct settings, it's a great sounding setup for the price. And a prior review asked about volume issues, usually from dust in behind the control dial, just pull the knob off and use some of the electronics pressurized air for dusting in the aerosol cans and clean/blow it out.

RX-6020VBK the receiver all of sudden changes the volume to higher and higher and i do not know what to do with it. help