Used these in a Valhalla 2 when one of the "Russian Rockets" started to crackle in my right channel. These are indeed very quiet. Not quite as good bass extension but nice transparent highs and an average mid range that doesn't speak well with vocals. Sound stage is noticeably narrower but still good. I think I'll keep listening but I expect I'll end up experimenting with something else. Mine were NOT very musical but very revealing. If you want a good high end and a very neutral sound try these. I'm giving these 4 stars base on how quiet and analytical they are.