Major Differences Between ADAT Decks

[Cornelius Bakka]

What are the *MAJOR* differences between the LX-20, XT-20, and M-20? I noticed that one of these decks doesn't have the ELCO connector on the backside, so I guess it's a bit less expensive. But, I'm sure there's got to be a lot more to this story that just a connector!

I can't find a definitive side-by-side comparison of features on Alesis' website for their current recording decks.