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Sennheiser HD 650's thin sounding?

Just received a new pair of HD650's to replace my dead HD580's and they sound so thin!!!

I'm using a Headroom home headamp with a NAD 542 CD, Kimber PBJ's and stock HD650 cable.

What is the deal with these phones? My 580's had much more bottom end slam and bloom in the mid bass? Is it a burn in issue or defective phones? Anyone have a similar issue?
loftus85

Showing 1 response by rgs92

rgs92
974 posts
 
Grado PS1000s have far better resolving power and refinement.
I moved from the 650s to those. You will probably get significant improvement for the 650s from APS (A Pure Sound) or Zu 650-specific headphone cables (at least I did,
but the Grado PS1000s in stock form are in another league
to my ears). Check out the big headphone sites for this.
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