I recently purchased a pair of HD580s basically from an estate sale. I have replaced the grills with HD600 grills. The headpad was worn out, and I so I swapped it for an Orpheus replacement. The only replaceable item at this point is essentially the earpads. I have compared them to my friend's fairly new HD650s. My pads seem a smidgen squishier but not enough to justify the ~$60 pricetag for the replacements. While removing the earpads to clean them (the former owner had abundant dandruff -- YUCK!) I happened to notice something about the earpads.
Here are my questions:
- Are the HD580/600/650 ear pads 100% symmetrical?
- How big of a difference can sound change from new pads vs wore out pads?
The reason I ask is after closer examination of the earpads, I noticed mine are not symmetrical. I am not quite sure of the original orientation of the pads, but I am pretty sure that the previous owner never removed the pads... not once. On each pad, one side of the pad, the foam is angled more outward from the center, where the opposite side orients straight up -- think perpendicular to the driver on one side and angled outward on the other. I figure it almost certainly has to be from wear, but who knows.