All righty, those Beyerdynamic replacement pads for my Sony MDR-7506's arrived. Making the switch was...a nightmare, at least at first. I'd forgotten how difficult it is to slip the edges of the pads into the grooves. But it wasn't so bad once I got my technique down, so the second one was a lot quicker than the first. And I needed to replace the pads in any case, and the Sony ones would have been just as difficult to put in.
Anyway, first impressions...well, the very first thing I listened to was a bit of "
Theme from Jurassic Park" (technically titled "3M2 The Dinosaurs (with 3M2 Record Intro and Wompi Ending)" in my edit-in-progress

) and I was a little disappointed by the fact that the sound seemed significantly less bright. After trying a few other pieces from various sources, though, I found myself quickly becoming acclimated. The treble is still fairly clear and strong, just maybe not so much as with the original Sony pads, which keep the drivers closer to one's ears. As expected, the bass is stronger with these pads, which is great, at least for the moment - the place where I'm living has a pretty high noise floor, and the bass tends to blend in a little. And on the topic of background noise...these pads cut out significantly more of those! Particularly the high end. I'm noticing how quiet my typing seems now.

Last but not least, the comfort factor: I'm not blown away, but they don't seem to be a downgrade, at least. The foam inside feels a little...crackly, somehow, but I'm hoping it'll soften up a little as I wear it in. And the lack of little black plastic flakes being shed all over me is very nice.

Boy, the added bass is nice. I hope it's not overkill when I end up listening in a quieter environment...