Stressful after work? Need to relax and tune in to the music? For me there is also some "magic" hours. Always played well for me. Only soundstaging and comfort that can sometimes frustrate me.. Maybe the LCD-2 do need warmup as well though. I remember how bright it was during our cold winter with colder and drier air also indoors. It seem to affect the LCD-2 more then any of my other headphones. My solid state amp I leave on. Feel a bit bad about that but it´s not a megawatt amp at least. As for my tube yes don´t need much time to enjoy that.