I've played the PA50 over the last month at Sam Ash. At first I really liked it, but later I didn't care for the key feel or the fill timing.
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Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)