ASL is generally regarded by many (me included) to be better built, higher caliber designs, esp. where it counts (transformers.) Agreed chinese tubes are nothing special (their 845 is ok though). Some really interesting amps in the ASL lineup, incl. the Tulip - an IT-coupled choke loaded (?) 2A3 amp which sounds better than it should for $1000 or whatever it costs. I've seen/used one Jolida, an older one (not sure how old) and the build quality was pretty much crap - hopefully they are better now.(?). ASL has a more varied lineup with a lot of unique amps, Jolida seems to have a more narrowly focused product mix.
-Ed
-Ed