Thanks Class...There I go, assuming that Linn wouldn't offer a high end controller without a Phono Section. I keep heading backwards in time while Linn heads?? It seems I would be no better off with an AV5103, than with my Kairn and a decent AV switchbox, which I already have. I'm more into 2-channel anyway. So that leaves the upgrade options to a Lingo II or a Linto, if it's that much better than the Kairn MC Phono section.
I also notice that the AV5103 lacks a headphone jack. I am unable to drive a pair of STAX Lambda Headphones (300 Ohms) from Kairn Outputs. If the same holds true for the AV5103, I see no need to pursue it.
Stax are designed to connect to the back of a Preamp, but with an adapter, I can drive them easily from the headphone jack of an old Sansui 9090...Linn Products are becoming much less interesting to me as time goes by. I favor the days of the Linn 'Black Boxes'...given the lack of response from Linn to answer my questions or Emails and lack of many local dealers that really know the products well and the unrealistic pricing of the newer products...I guess I'm nearly 'Linned Out'. But that's a different discussion.
I still think the Better LK series amps and Kairn Preamps are good enough for my worn out hearing...Perhaps I'll just focus on improving my analog stage with some updates to the LP-12 and leave well enough alone.
All this upgrading and tweaking reminds me of that Classic old Steve Martin monologue: 'I bought A Stereo'...He ends up with a 'GooglePhonic Stereo with a MoonRock Needle' cost him a few million dollars..."not bad for a car stereo, but wouldn't want it in my house!"