I honestly think the 325i is a terrible headphone and that Grado needs to massively revamp its sound signature. I was very displeased by the bloated midrange, deadly highs and boring low end. The speakers reminded me of a Bose car stereo; it can go loud, it's just very unpleasant with nothing captivating at loud volumes. I suspect the people who like the 325i also like Klipsch's horn loaded tweeters in their speakers, which I also find unbearable due to the highs. I really find the SR60i and the 80i the only enjoyable Grado headphones, though.