I bought the H/K AVR65 in 1998 and it has been perfect for 15 years. Now I'm starting to hear a few pops and hisses! So it's time to replace & upgrade. Here's the advise I need. I'm looking for the best/most reliable 7.1 with 100+ power for around $500. I could do $600 but it would be painful. I like all of these, but the one thing I DO NOT want to deal with is QUALITY ISSUES! 1. YAMAHA RX-A720 ($589 - Buy Squad) 2. YAMAHA RX-V673BL, ($599 - Amazon) 3. YAMAHA RX-V573BL ($399 - NewEgg) 4. ONKYO TX-NR616 ($399 - NewEgg). Tech reviews are excellent, but user reviews not so great. 5. PIONEER SC-1222-K ($549 - NewEgg). Feel free to chime in with your recommendations. Thanks for your help. Bill...... Harman/Kardon AVR65 Polk Audio Monitor 65T mains Polk Audio Monitor 15C center Polk Audio OWM3 surrounds Sony SA-WM40 Sub