Those of you who do not understand the hype concerning tubes have never tried them. I am an electronics engineer too and was also prejudaced by the modern scientific school of thought. That is until I stumbled onto a Jolida 302b and a pair of Klipsch Forte' for cheap. When I brought them home I was expecting the typical Klipsch sound that I was accustomed to - brutally cold and hard. I was blown away! The sound was earily live, smooth, detailed, and warm. I swapped the Jolida out with my ADCOM GFA-555. The familiar ugly Klipsch sound returned. I am sold on tubes. Don't waste your money though, buy a cheap tube amp and experiment with replacing tubes. If you currently own any pair of Klipsch and do not have tubes driving them, you owe it to yourself to try it. I would not waste my time typing this if it was not the most dramatic thing I have ever heard.
John
John