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Massdrop x Sennheiser HD 58X Jubilee Review & Measurements

Discussion in 'Headphones (full-size)' started by jude, Dec 20, 2017.
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  1. MisterMonsieur
    Just wanted to chime in and say that the stock HD58x had noiceable treble grain over the HD660s which wasn't absolutely grain-free. With the 3,5 mod my precious HD58x lost some of its warmth and the treble got way smoother. It is now a more neutral headphone with good subbass-presence.
    I paid 180€ and couldn't be happier with the money spend.
     
    Last edited: Jan 28, 2019
  2. Seazer
    I did that mod and while the treble was smoother I felt like I could hear some distortion in the bass, especially upper bass. Almost felt like it was resonancing somewhere. I'm going to try the akg foam mod and see how that sounds, I'll report back when I finally get it in the mail
     
  3. MisterMonsieur
    Lucky me, the distortion is not audible for me. I am having another HD58x coming soon for myself, the other one I will give my brother who is living with me in the same flat.
    Then I can compare all the little nuances the mod makes.
     
  4. Lay.
    May I ask what amp/dac you are using if you can hear treble grain with HD660S?
     
  5. Deftone
    I tried with many sources and amps with no problems with grain here.
     
  6. Lay.
    Same here. With balanced outs: Klipsch Heritage, FiiO Q5 AM3A & AM3B and HDV820... some single ended amps and Galaxy S8+. My phone is the only device that does not sound that good although I can get enough volume.
     
    Deftone likes this.
  7. wje
    Do you have a multimeter? You could check for continuity in the wires as you work to replace the 1/4" plug. On the pins that feed into the ear cup, the larger pin is the positive (+) connector for the connection. Please let me know if you have any additional questions. A simple multimeter, so to the Ohms setting to check for continuity can be purchased for $10 - $15.
     
  8. TheRH
    eeagle and wje like this.
  9. Electrolite
    What's this 3,5 mod?
     
  10. wje
  11. Electrolite
  12. TheRH
    20190130_172432.jpg So, I made a small mod a replaced the stock connector with a Neutrik one.
     
    annasoh323 and wje like this.
  13. WilliamLeonhart
    When I had the original Dragonfly I could hear a bit of grain on the HD660S and the HD58X. I gave it to my brother and upgraded to the new Black version, so far I haven’t hear grain on any other amp (with the HD58x) yet
     
  14. Seazer
    So I believe I have found my peak 58x sound after modding, at least the best to my ears. Like I said earlier I had got the Dekoni Sheepskin pads and they added a ton of bass, it was a bit overwhelming. Well I just got in the AKG K240 foam net pad piece that was mentioned the the pdf about 58x modding, the one that talks about the 3.5mm felt hole mod etc. This akg foam pad is foam on one side and a sort of microfiber cloth on the other. I cut circles and taped them foam side down over the vent hole. This brought much more clarity to the treble, while lowering the bass. However the Dekoni pads sort of cancelled out the lowered bass and in my opinion is now at the perfect amount, along with treble clarity that is improved over stock. With these mods I turned off the Harmon target EQ and run them without EQ. With the EQ the treble gets a bit hot and the mids lack depth. However running stock EQ the mids feel full and honestly this is the best I've been able to make them sound so far. Very impressed
     
  15. tolis626
    Are you sure they don't sound more like a closed back by now? :p

    In all seriousness though, glad to hear that, at least with some modding, the 58x work well with other pads. I want to get other pads for mine because I just don't like the Sennheiser ones. They are too firm for my tastes and they get deformed with use. Mine have dents from touching parts of my skull and if I don't line them up correctly I lose the seal on my left ear at times and it sounds dead. Move it a bit forward and it sounds fine, but now it's touching my earlobe. Not to mention that they're shallow. I must have weird ears. Or larger ones than I thought.
     
    jaco61 likes this.
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