Basically I also do not find the 325is aggressive in the literal sense of the word.
It, imo, simply lacks the bass amount/articulation, to compensate the boosted treble section. The RS1is rectifies this problem by adding more warmth and therefore returning to a more SR80i-ish sound.
Your idea of sound, is your idea of sound - in this regard, our hobby is among the most random in existance (imo). - just a statement
My 325's definitley have more bass than treble by far, no matter which source/amp/dac/genre I'm listening too with them. Thats what is very strange about them, especially when almost everyone says what you've said, I just don't know, but this is what makes me like them so much compared too my other Grados. They are (almost) like total opposites.
Edited by joseph69 - 3/8/14 at 5:35pm