iiWi Reviews….he does an outstanding job at raising these types of questions with current offerings. He’s basically defending the qualities of unique designs with a different approach to the output stage - Lampizator and the use of tubes in the output stage to be exact. I really believe that - when you’re really using your ears - different designs approaches can render limitless possibilities. Circuit design creativity will always bring about change, but also tends to be expensive when offering something more special: