I remember the first time I heard the LS50s. It was partnered with high end solid state amplification and i thought they sounded very good. The next time I heard them was a dealer that carried Raven Audio tube amplifiers.
I was stunned at how incredible they sounded, from a 20 WPC tube amp. So sweet and holographic. More than enough power.
I thought now I see why there is such buzz about these speakers. I bought the amp on the spot and the KEFs shortly after.