Hi Corelli,
I haven't heard the Line Magnetic SETs but I've gotten enough feedback from people I trust that the 518 ia, 219ia and 508ia are really quite special amplifiers.
Yes I am very content with my system (going on 8 years). I was after a very natural sound and a system that brings out the sol and emotion of music. I never pursued "perfect" sound, that leads to frustration IMO.
Charles

