Any info on these is much appreciated, They look fantastic, and sound good from what I could tell so far, someone did a crappy job refoaming so couldn't push them at all.
Typo on title, They are in fact LS-408-B's
No, the thread still says typo in the title up there... the title is correct but the thread is misleading, no problem we know what you mean but since no one has quoted anything you can make that change in the thread and no one will ever know about a typo.
$620 1980-83 according to orion, but I don't know much more. Aren't they discussed on AK some? Or maybe mentioned by @Big Tuna? Maybe Charlie knows something about them