I have to disagree with the topic. I played a PA500 at GC today and it sounded very excellent. I had people standing around and they loved the board. It sounds as good as its big brother (800) and very nice looking. The keys felt fine for now.
I left scratching my head wondering why in the heck I traded my 800 for the lemon I'm stuck with now....
zuki
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Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)