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  1. stratocaster

    Earbuds Round-Up

    FYI, some measurements of buds I own. Measured on my DIY measurement rig, most probably not comparable to measurements on other systems. I am providing this to give you some visual information on differences of the buds on this very measurement system.   All measurements taken with Cygnus...
  2. stratocaster

    Grado modders go Magnum

      Here you go, V6 driver in Gradoesque cup, no pad!  
  3. stratocaster

    Grado modders go Magnum

    There is one thing I would definitely change about the V6 drivers and that is the lack of a protective mesh over the front of the driver. Even if you are careful, dust eventually settles inside the driver and in combination with the stuff Rhydon uses to "coat" the diaphragm with, these particles...
  4. stratocaster

    Grado modders go Magnum

    A tiny glue dot will do the trick
  5. stratocaster

    Grado modders go Magnum

    Press-fit, but I have to admit that I am not a strong believer in the different wood, different sound stuff. Other variables (pads, cup depth, cup diameter, resonance reduction through damping, no air leakage between driver and cup[less sub-bass] etc.) are more important to me.
  6. stratocaster

    Grado modders go Magnum

      Honestly, I do not know. I would be sceptical though. Mine absolutely needed the foam ring below the pleather in order to get the bass boost under control. The foam ring has the effect that it ensures a slight leak, which is necessary to ensure bass extension as linear as possible.   I have...
  7. stratocaster

    Grado modders go Magnum

      I am using (p)leather pads (which come with MiHeadphones by Xiaomi) glued on a foam ring cut off a used L-cush:       Using pleather pads instead of leaky Grado ones I have to use internal damping to balance out the FR. Below you will find a pic with the damping materials I am using. I...
  8. stratocaster

    Grado modders go Magnum

      These.   The V6 have replaced the Turbulent X (V5) drivers. The highs of the V6 are smoother.
  9. stratocaster

    Grado modders go Magnum

    Just a quick glance at some initial measurements:   Stock V6 with Flats: Strong bass (to be expected with 3 vents open), very nice midrange without any 2kHz shout, extended highs   Modded (damped plus hybrid leather pads) - looks kinda like HD800 FR now     @Rhydon: Very well done! I...
  10. stratocaster

    Grado modders go Magnum

    Now that is some exciting news Waiting for Rhydon to elaborate a little more on the new drivers.
  11. stratocaster

    Grado modders go Magnum

    Measurement mic like this, plus audio interface with phantom power supply and ARTA or REW measurement software.
  12. stratocaster

    post your grado mods....

      As a matter of fact, just using velours will not do the trick. I tested lots of (p)leather and velour pads together with internal damping ... Only Beyerdynamic DT250 pads on top of a foam ring scavenged from a cut-up Grado L-cush sounded good, flattening out the frequency response.
  13. stratocaster

    The Mi Headphones by Xiaomi (Lively Discussions starting Page 7)

    FWIW, measurements of different pads ...   1. on-ear (p)leather pads:   2. over-ear (p)leather:   3. on-ear foam pads:
  14. stratocaster

    Grado modders go Magnum

    GradoMagnums have a mid-bass hump and serious bass roll-off, combined with elevated higher frequencies. The reason for this is the foam pads that let too much bass energy pass through. But if you use velour or leather pads, there is simply too much mid bass. The solution is to combine both...
  15. stratocaster

    Grado modders go Magnum

    L-cush has different foam density and helps the Beyer pad keep the right distance from the driver! It's JUST 2 thirds of the L-cush glued to the back of the Beyer pad. Did LOTS of experiments (plus measurements), and this is just the right setup.
  16. stratocaster

    Grado modders go Magnum

    Anyone got some Magnum drivers to sell? Preferably all grey V4.
  17. stratocaster

    Fostex T50RP Incremental Mods and Measurements

      It is just a felt ring on the underside of the pad (allowing some leakage that flattens out the bass) and some open-cell foam (the white stuff in the pic) under the pad (flattens the highs to some degree). That's all. When there is too much treble energy for your taste, you can put some...
  18. stratocaster

    The StratoKOSSter – A closed DIY headphone based on the Koss KSC-75 driver and Grado cup design

      You won't be able to use (p)leather cushions of any sort on your RS2. Replacing foam by leather would elevate the bass, which is fatal because there is already a mid-bass bump with all Grados. If you used leather pads like with my StratoKOSSters, you would have to open up the Grados and...
  19. stratocaster

    Fostex T50RP Incremental Mods and Measurements

    My 2 sets of 'stock' T50RPs ceased to exist 2 years ago! Since then I have been modding them, first in the stock cups, later on in (closed) wood cups. Now I am going open with them. I would have to buy new T50RPs to measure and post 'stock' results  but since they are rather expensive here in...
  20. stratocaster

    Fostex T50RP Incremental Mods and Measurements

    Here is a little treat ... T50RP Open V2. Not bad, eh?  
  21. stratocaster

    Fostex T50RP Incremental Mods and Measurements

      There is greater cup volume, but that is not really essential (at least in my view). I am waiting for T500RP measurements to pop up. Then we'll 'see' how they perform 'measurewise'. I am sceptical about the magic trace tweaking. One thing is for sure: pads make a huge difference. I am onto...
  22. stratocaster

    Fostex T50RP Incremental Mods and Measurements

    No, it's a solid wood baffle without any port whatsoever. Just one other thing: pads are HM5 velour pads. I had the best results with these, (p)leather did not work.
  23. stratocaster

    Fostex T50RP Incremental Mods and Measurements

      They sound full and punchy, just a tiny little bit on the warm side, smooth, nicely balanced and mids are clear. They have to be damped tightly, really not much different from closed T50RPs. Having a measurement rig available (calibrated microphone, Steinberg UR22 audio interface plus Schiit...
  24. stratocaster

    Orthodynamic Roundup

    I have measured the T20v2 performance unmodded (completely open as seen in pic1 on the left) vs modded (damped and closed).           As for the graph of the unmodded configuration (yellow), if you close the cup (which I did not do with this particular set), you can expect an elevation...
  25. stratocaster

    Orthodynamic Roundup

      T20RPv2s require much tighter damping in order to achieve a flat response up to 1kHh. There is noticably more treble energy as well, resulting in a slightly u-shaped response overall. I had to use a kind of fazor/filter of felt in front of the driver in order to bring down the treble to bring...
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