I am looking into replacing an existing HK AVR500 with a newer reciever to enter the 7:1 world. I have been very happy with the performance of my current reciever so I will probably contniue with an Harman Kardon. I have looked at a couple of units 330/430. Can someone share an opinion on either of the two new units. I am also curious about speakers. I would like a sound that is more clear with low distortion as opposed to blowing me out of the room. The room is 16 x 20 with very high ceilings. I wold like to spend no more than about $1600. Any input would be most appreciated. I forgot some important details. The Klipsch speakers were F-3's and the Sapphire were towers also. I think they were called ST3's. Thanks John S.