Boominess kinda comes with the territory on unburned CNT drivers.
You'll be fine once you stretched those drivers out and your brain has got used to the sound signature.
Thats what im using i think its a clip +. Will it make a difference if i stop the burn in toinight and give them a listen to try out or is it best to do the 48 hours straight? This is m first proper pair of headphones having only had the cheaper sennheissers px100 & hd218s and a pair of bose ie2 none of which i burnt in at all but not sure if they needed it or not.
By all means take a listen mate, you might already notice the change in sound.
I noticed it after about an hour of having them on my head last night. Bass is tightening up already, highs are becoming slightly more prominent and mid is coming forward.