I just received a pair of Shure E3's in the mail. I seem to be able to get a seal with the foamies, however, I just can't manage to get a seal with *any* of the other ear-pieces. (clear silicon or opaque rubber) Is there some trick I just seem to be missing out on? I reach over the top of my...

I just got my D-211 back in proper working order. It had a crackling sound in, as it turns out, both the headphone and line-out jacks. I discovered that it was actually the volume knob that was the dirty cog in the works. A little disassembly and some contact spray was all it took to toast that...