I'm still trying to put together my first impressions, but with about 2 hours of headtime, I'm pretty pleased so far... they're my first pair of Grados I've personally owned (only listened to the 60 before these 225) Highs aren't as shrill out of the box as I thought they'd be, but I guess that was always a characteristic of the 225, huh?
I think I can comment on build quality, though. The cables are heavy duty, being very thick and robust. The bowls are a new type of pad for me... I actually think they're actually quite comfortable! ...the ES7/ESW10 must have prepared my ears for them :P But overall build quality is nice - The new 325 style shell looks great, if not a bit plasticky. Overall, the 225i seems very well built.
Spent a lot of time with the 225i yesterday and can say I didn't find them particularly bright or dark really. I'm naturally inclined to the darker side of things. While they are still burning in, they sounded good with much of my music, the imaging to me was a little hard to pinpoint on some tracks. I'm going to hook it up to a better source then my echo indigo IO because I have a feeling that that is where the problem lies right now.
Which is what I should be doing instead of messing around with the 225's. After some burn in I'll compare and see if there are any significant differences and post my findings in a seperate thread. Might be a week or so as I have some difficulties at home, a busy few weeks at work, and other "distractions". Someone will likely beat me to the punch which is fine. I just have to know for myself....