Originally Posted by techofthe9
Hmm but from what I heard the 325 isn't that much better the sr60s
I found that the SR80i and the SR225i were very similar. The differences seemed to be (a) better matched drivers in the higher prestige models (see Grados description on their website), (b) heavier cable, and (c) different pads.
The biggest difference seems to be the pads. When I switched them out, it took the SR80i 80 to 90% of the way to the SR225i sound. So I suspect that the drivers are the same, just better selected to match with each other just like Grado claims.
Given that, the primary difference between the SR225 and SR325 seems to be plastic vs. metal cups. This would explain the SR325s reputation for being brighter because of the reflective nature of the metal. So unless you want a bit brighter sound than the SR60s would sound with the same pads as the SR325, might not be the best choice for you.