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What Would You Ask Sennheiser’s Axel Grell?
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What is the reasoning for the significant frequency response differences between the HD600/650 and the 700/800? Especially considering these are more than a decade apart.
Do you think there should be an expectation that professionals/audiophiles should equalize their headphones?
What is your opinion on the research done by Sean Olive at Harman on a preferred listening target curve? HD650 seems to do a very good job of matching it except for the bass response.
Is the differences in perception surrounding open/closed back headphones simply as a result of noise attenuation.