From what I have seen so far, the AL80B is a pretty tough amp. I usually drive mine with 50 to 70 watts depending on band conditions, and it gets the job done nicely. On a 110 line I see 500-800 watts out depending on drive, which is ok by me. Really not sure which 3-500 is in my amp, but was told it was the original.
There's a guy on 40 meters that runs one of the Alpha 9500 models with the all auto stuff. He is elderly and can't see so well, so it really helps him out with not having ti tune. Very pricey, but worth it if you have the money.
73,
Brett