Tried I/V stage V7v : more details and stereo effect very large, but with Ultrasone ED15 feels more far away, same for ED12. Not sure its a good thing, have to play louder to have same music level(why everyone is saying that V7 is louder?) or to have music "closer". Maybe heat is affecting performance 27 room and 41-44 Celsius on the surface, hottest sides and above opamps. Waiting for better weather to run more burn in, was quite harsh at first, but could be due to ED15 low time also. Would Burson benefit for extra cooling in this situation? What temp. is normal? Should I try 3602 in LP(brand new, wanted to test on something inexpensive at first initially)? Will try Pro 900. Also, anyone changing initial Burson settings for different opamps?
My magic is dark so far...