Yeah as someone who used to own a lot of older 80s and a 225 and 325is(which I still have), the 325x is a little bit of departure from the old but I don’t necessarily find that a bad thing. It’s just a tad darker than grados have been in the past but still have that “grado” house sound. Mids are still nice and filled in but theres better bass response and a slightly darker upper end on the 325x compared to the 325is. Personally, I find the sound to be less fatiguing over a longer period of time. 
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