mrscotchguy
1000+ Head-Fier
- Joined
- Sep 21, 2010
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Well, to be honest it is a very small difference. With the 58X metal grills, it comes very close to the 600 in sound. The original plastic grills make it a little brighter actually.
My guess is this is due to manufacturing differences and perhaps the back foam dampening has aged. Also, the brightness I am hearing with the 580 is only in the upper mids, not the treble which does sound pretty much the same to me as the 600. The 650 is absolutely darker than both the 600 and 580.
I heard another 580 years ago, but I can't remember exactly how it sounded. I was also comparing it to the Beyer DT880 at the time, which obviously is a much brighter headphone than any of the Sennheisers.
I am pretty sure I have the same iteration HD580 as you, with the HD650 grill swap. Mine was purchased used from an estate from the audio store that originally sold it the former customer, his widow had the owner appraise all of his gear and gave him first "dibs" before the auction company.
I've had it for it for years at this point and so did he. The earpads and head pad had to be replaced, but the speaker foam seems to be fully intact. (I had an old koss esp-950 where the foam completely disintegrated).
I can safely say the HD580's sound changes noticeably enough when you change the grille or even replace worn out earpads. But at no point would I describe any combo bright by any means, however, I do lean towards a bright can.
I would recommended contacting Sennheiser and see if they have a replacement part for the foam. I'm not certain, but they may be included with a fresh set of earpads.