I am in the market for a new receiver - currently running an ancient Dolby Pro Logic Kenwood 5570. I have BA HD-9s as mains, and recently ourchased through eBay: HD-5s as back surrounds, BA 4004v center channel, and a PV400 subwoofer. I have heard and read about matching speakers with a receiver. As a newbie, I am lost but want to get the best sound with what I have...btw I work for a non-profit with limited income so trying to make the most with the least. I am intrigued by the reviews of the Panasonic XR57 - seem to get alot for the money. ALthough some report that it is shrill and high (?). I throw myself upon your mercy for guidance and advice. Many thanks.