[slwiser]

Originally Posted by HeadphoneAddict

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I've had several people ask about the sound signature, is it more like Grado or Sennheiser. The answers to that are in the other HFI780 thread So what's the word on the new Ultrasone HFI-780???? so just read it all, listening to the people who own them, not the speculators and spectators.

In a nutshell, 780 are fast and energetic and forward vs slower and mellower HD600, but they are not the Grado "in your face" nor as "deep" as the HD600. However, the right source, amp and cable can get the HD600 to sound like that (fast and energetic). For instance, my re-cabled HD600 and re-cabled RS-2 actually sound very similar. Yet a stock HD600 vs stock RS-2 is more different, with the more energetic forward sound going to the RS-2. However, you would not mistake a 780 or HD600 or RS-2 for one another if you were blind folded, whether stock or re-cabled.

The 780 have more bass and treble than my re-cabled RS-2, but have a wider soundstage and are less in your face than the RS-2. But my recabled HF-1 have more bass and a deeper sound stage than the RS-2, but not a lot wider. So, even among Grados the sound can be different.

Herculean efforts by you to differentiate these headphones is something else....I know how different headphones sound such as the Grado and the Sennhieser. These differences are basic and anyone should come to understand those basic difference first before asking the more subtle changes between the character of the bass or highs or mids. I could not even begin to understand what you are saying unless I understood the basic sound profiles of each. Even knowing this I have learned that the Sennheiser HDxxx series actually changes it's total character after being balanced.

In other words thanks for all your efforts but without personal experience words can never adequately explain everything in this area.