New to me are a Linn LK1 and a Linn LK140. I just started playing records on the setup this weekend. AR XA with MM (Shure M91ED, w/new JICO), stock arm. LK1 has MM and MC phono stages. On MM, sounds beautiful, but one or twice per side, in the middle of a track, the LK140 will shut off. I know...