I've recently moved up from my longtime K701s to HD800s - and loving every minute of it. I usually mostly listen to classical and jazz. As an impulse I picked up an SR225i for rock. I'm enjoying the Grado sound. It's a nice contrast to the HD800. But the SR225i is not close to the level of clarity and transparency of the HD800.
I'm wondering if it would be worthwhile to sell the 225s (practically new) and save up for an RS1i or RS2i. How much of an improvement are the RS 2i and RS 1i over the SR 225i? Also, would any Grado fans like to comment on the sound signatures of SR225 vs RS2 vs RS1 and/or point me to a good thread. I've found some limited discussions of RS1 vs RS2, but I don't yet have a clear idea of the differences between them and especially how they sound compared to the SR225. Some comments have suggested that the RS2 is nearly as good as the RS1 or is as good but with a different sound signature, but costs significantly less. Why do most seem to go for the RS1 over the RS2, is it because of the expectation that it will be significantly better because of the price difference, or are they actually clearly better (greater clarity/transparency/detail/tonal balance/impact/whatever)?