I've read conflicting reports on this. For some don't hear it or don't mind it, others have said they find it distracting.
I been doing my research.
Top tier soundstage: Sennheiser HD800
Top tier full bass body: LCD 2 Rev.1
Top tier bass impact/rumble: Fostex TH900
Top tier imaging accuracy: Beyerdynamic T1
Top tier clarity/resolution: Hifiman HE1000
Top tier mids - Probably one of the flagship Grado
Any combination of those aspects in one headphone would be in the $3,000-$5,000 range headphones.
I'm on page 1,120, almost caught up.
If I do spend $1,000, I want the soundstage & imaging to be noticeably improved & any brittleness, harshness or overly brightness to the the highs be smoothed out.
I know it is impossible for any amp/dac to give the HD800 the bass of the LCD2, so I am abandoning that dream.