Hello all, new to the site! Looks great by the way! Currently I have the Panasonic SA-RX25. I can't complain about this unit. It sounds pretty good and I bought it for an excellent price! However, I recently upgraded my speakers to the Athena Audition Series. I'm sure these speakers and the Panasonic will sound fine together, but I was possibly thinking about upgrading my receiver as well. Might as well get it over with in one shot, eh? So the receiver that looks the best and has the best reviews within my price range is the Harmon Kardon AVR 525 or AVR 430. In your guys' opinion (cause you are the experts) how does the HK compare to the Panasonic, or vice versa? Will there be this astonishing difference. I would attempt to audition, but how often do you get to audition the receiver you want with speakers you already own? Looking for some advice and or recommendations. Thanks all.