Thanks for the replies.
I do not want super deep bass just a little bit more punch.
Shall I use any tape?
So I rather go and get a nice AMP/DAC than another pair of Grado cans? If that is the case is the Aune T1 a good option? I would love to keep things as simple as possible.
I have read about the Magnums and I may be interested. Do they keep the Grado sound? if not totally, what changes? DIY is out of the question, I still have DIY projects from 2000 to assemble. Can I have someone do the cans for me?
What I want is a pair of Grado sounding cans that keep the headphone monkey away for a while (as long as possible). If something like the T1 improves the sound and will match well with something like the P500 or RS1's, that would be lovely.