Heres a little known Grado RS1 assembly fact:
The gimbal rings hold the enclosures by way of two screws/pins. There are threads on the ring itself but no threads in the enclosure; in other words the enclosure is connected to the gimbal ring by a simple 'dowel pin fit' on the enclosure itself, and the pin is threaded into the ring. Make sense?
The threads have glue put on them, but heres something VERY important for would-be modders: on each pair of pins that hold the enclosure in place, only the right hand one is meant to be taken off. The left one is more permanently glued. So for each pair of pins that hold a single enclosure in place, only the right side one is meant to come off.
All you need is for one pin to come off to remove the enclosure from the gimbal ring (the earpads come off beforehand.)
I already mentioned how to get the speakers out but that process is very very risky. I strongly advise against trying it. And
I dont suggest messing with the pins and the gimbal rings either, but hey, if you are crazy enough to try you might as well be at least a little informed of how to do it.
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PM me if you have an RS1 and intend to try and mod it. Again, I dont suggest it, but I might help keep you from busting something.