I have the Grado SR125 FR graph from your site as well as the new SR125i FR graph that has been recently put up , undoubtedly shows some change in the sound signature. The SR125i as far as I know, is the only new FR graph while all the other models such as the SR60i,SR225i,SR325i etc still use the same FR graphs as their original non i models. I was wondering if HeadRoom can make a FR graph of the new RS1i. The RS1i sound is quite drastic from the RS1 from my experience so it would be quite interesting to see a FR graph of the RS1i. Any consideration is greatly appreciated.