Thanks very much for the guide.  I simply cut the tape from around the middle hole as pictured and I must say it makes the bass really rumble... I'm impressed.  I'll have to look for some putty to try the vibration dampening.

Quote: After some more research based on your suggestions.  It seems the Alessandro MS-1 might be a little more well-rounded than the SR-80i.  I'm sure the Ad700 is more comfortable than either the MS-1 or the SR-80i.  So the question now becomes, is there a big enough difference in the...

New here... looking for some advice from the experts.   I'd like to try some open headphones just to have something different.  I currently have some closed headphones (Sennheiser) and various IEM's.  I really love the comfort of the Sennheiser headphones, but I want to try something open...