can you help me?
I would like to buy a amp for my Grado Rs1i.
My choice is between the Mad Ear+ HD and the Graham Slee Solo Ultra Linear Diamond Edition.
I saw that in the forum it's possible to find them used.
can you suggest me which is the best amp for my Rsi1 and at the same time the best deal?
I have experience with neither, so don't take my recommendation as your deciding factor, but on reputation alone, I would go with the Mapletree. I enjoy just searching Head-Fi for people's impressions of their Grados run out of a Mapletree And that's a pretty decent deal too. I think the Ear+ HD is in the 700USD range when new.