Dave Polster is a vinyl mastering engineer at Well Made Music and a recording engineer based in Cleveland, Ohio. He has been recording and mastering music for over a decade. Dave is a large proponent of vinyl records. Signature etchings in matrix typically appear as a "dP" (may appear as JP) slanted, typically followed by a #1 or #2, which is used to identify which of the two lathes at Well Made Music was used to cut the master lacquer. Please only use ANV dP