[riker1384]

I have a pair of HD580 and I like them, but the low sensitivity bothers me. My iMac just barely drives them to good levels if I turn it all the way up, and my Ipod is the same (and that hurts battery life). I really don't to deal with the money and hassle of a headphone amp. I was thinking of trading the HD580 for a pair of HD598. Does anyone own both of these? How do they compare?
 
The HD598 gets good reviews, and looking at its frequency response (both here: http://www.innerfidelity.com/headphone-data-sheet-downloads), it looks very similar to the HD600 except the 598 has a small peak in the
 
Also, I was thinking of the HD558 since it's cheaper, I prefer its color to the 598, and it seems to be similar to the 598. There are rumors that it uses the same driver, with foam just like the HD555 and HD595. Has anyone confirmed this? Also the headphone.com FR graphs for the 558 and 598 look the same except for a region in the upper mids where the 558 is stronger.

 

[GigaFi]

The 558s are a little bit tighter on the head and is slightly worse built but that's about it. They sound extremely similar.
 
I had the 558s and upgraded to the 598s solely because I wanted the "top" one but I would've been happen with either.

 

[jworl]

According to Mike from Headfonia, the 558 and 598 use the same drivers.
 
http://www.headfonia.com/sennheisers-new-hd558-and-hd598/3/

 

[Han Bao Quan]

Quote:

According to Mike from Headfonia, the 558 and 598 use the same drivers.
 
http://www.headfonia.com/sennheisers-new-hd558-and-hd598/3/

But different constructions, so they sound differently.

 

[peck1234]

I have a 598 for sale if interested. 
 
Like new and always taken care of, only reason im selling is because I need isolation. 
 
http://www.head-fi.org/t/598948/sennheiser-hd-598