Truss rods adjust relief. To check the amount of relief you have, fret the e string at the first fret and with the other hand fret the fret closest to the body (usually 14th). If the e string is sitting on the 7th or 8th fret, that is the cause of your buzz. It needs more relief. Turn the truss rod to the left a quarter turn and check it again in a couple days, assuming the Larivee doesn’t have a two way truss rod. Do the quarter turns left until string tension pulls in some relief.
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