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nflj_showcase_replies_on_review_by_x

  1. HiFiChris
    What you're experiencing with the UE900 is the effect of the Hidizs' unfortunately quite high output impedance that in this case elevates the UE's treble.
    HiFiChris, Jan 12, 2018
    Grimbles likes this.
  2. Grimbles
    Thanks hifichris. Do you think this applies equally to the hd600s?
    Grimbles, Jan 12, 2018
  3. HiFiChris
    [USER=484372]@Grimbles[/USER] Doing some quick calculations - nope, even though the HD 600 doesn't have a flat impedance response either (it's a common thing for open-back dynamic driver headphones and has to do with their resonance frequency), the Hidizs' output impedance is still low enough for it so that the deviation would be clearly below 0.1 dB.
    HiFiChris, Jan 12, 2018
    fcaton and Grimbles like this.
  4. HiFiChris
    [Continuing here because the editor doesn't allow more characters] I really don't have an explanation for where this impression with the HD 600 that you have compared to the Sennheiser playing from different gear comes from (apart from the HD 600's mild lower treble lift itself of course).
    HiFiChris, Jan 12, 2018
    Grimbles likes this.
  5. Grimbles
    Thanks - understood. I think I tested with the ue900s before the hd600s. It might well have been my own confirmation bias.
    Grimbles, Jan 12, 2018
    HiFiChris likes this.