This is my favorite tool to recover broken RAID arrays: http://www.diskinternals.com/raid-recovery/
It works with or without the original RAID controller (and it works better without it). Most things are done automatically, but there's a healthy degree of manual control. Unrecognized file systems are OK, this tool supports most major ones even if they are severely corrupted. And, it comes with its own implementation of data carving, allowing to extract certain types of files (quite many, actually) even if there is no file system at all.
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