If you need to finance a Grado, or anything under $5k really, you shouldn't be getting it.
Depends what you're looking for in a Grado. The graphic below is a merging of 5 different FR graphs from RAA, all leveled at 1khz so you have a better idea of what's going on:
- The RS2e (brown) and GH4 (amber) have the flattest responses, the GH4 more so, which is why I think the GH4 is the best current midrange pick if you can still find one. (The Hemp replaced it as the midrange limited-edition model.) But it also explains why so many love the RS2e.
- The PS1000e (blue)/GS3000e (green) use 50mm drivers. They have more of a bass rolloff, and more of a 150hz midbass bump. Note that this is with the G pads, so putting L pads on them will drastically affect this. The GS3000e is more neutral than the PS1000e.
- The older PS1000 (red) used 40mm drivers. Even with the G pads, you can see that it's the most smile shaped, which means more visceral bass and treble. I bet if you try the L pads on the PS1000, that will give you the most slam of the bunch.
Personally I think the PS1000e graph looks real wonky here with the worst bass rolloff and greater midbass bump, which may contribute to added muddiness. You're best off looking for a GS1000i or PS1000, as those older larger models kept more of a smile FR. However, VinMAC has stated he still didn't care for the GS1000i as much.