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  1. c61746961

    Grado Modders Go Ypsilon (Elleven Acoustica drivers and builds thread)

    Fantastic. Are you planning to measure these? It would be wonderful if they could be added to your V7, Nhoord, Ypsilon S1 comparison. So many options!
  2. c61746961

    Fostex T50RP Incremental Mods and Measurements

    Is that a mk3 baffle with a mk2 driver?
  3. c61746961

    Fostex T50RP Incremental Mods and Measurements

    Yep, that's the way to go. Just don't stick anything onto the dampening paper, stick it around, over the driver assembly. I'd try to get my hands on stiff felt and a hole puncher, I'd try a square of 2mm stiff felt with a hole punched, aligned with the hole on the stock paper. This will reduce...
  4. c61746961

    Fostex T50RP Incremental Mods and Measurements

    That completely surpasses my skill set, but you may have some luck with something like this.
  5. c61746961

    Fostex T50RP Incremental Mods and Measurements

    Wow, looks like some debris may have shorted the traces, try cleaning it up with isopropyl alcohol and measure the impedance again. Be extra careful when reassembling, the glue holding the magnet assembly together tends to lose its strength and the magnets could fly and snap against the other...
  6. c61746961

    Just listened to some Fostex T50RPs today... WOW!

    To make it behave more linearly. Think a more linear frequency response. Little dampening = more bass, wonky mids, recessed treble. More dampening = less bass, more linear to elevated mids, sometimes spiky treble. I'm not sure about reflections, but the least sharp T50RP I've modded doesn't...
  7. c61746961

    Just listened to some Fostex T50RPs today... WOW!

    Yep. In a much smaller sense than it appears. The mk3 is pretty decent-sounding and it features zero cup dampening. I wouldn't go overboard on this. Same as above, if anything, dampening the baffle will lower distortion in the bottom octave. I would this as a finishing touch if needed...
  8. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    Yep, the sweet spot lies between 4 and 8 vents taped IMO depending on the listener. Absorbing materials at the bottom of the cups (being careful that they do not interfere with the back of the driver directly) will net a slight clarity increase in the midrange/treble. Downsides?, perhaps...
  9. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    Flat = T40RP Fun = T50RP Bassy = T20RP Be aware that you can turn a T20RP into a T50RP by adding some cup vent damping and vice-versa, but you cannot turn a T40RP into anything else unless you remove the piece of plastic that is heat-fused to the cup vents, which can turn out ugly if you're not...
  10. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    Definitely taping the baffle ports (ear side) should be your first consideration, that will increase bass in general. To reduce bloom you can fine tune cup venting, a small vent (1-3mm) will help.
  11. c61746961

    Fostex T50RP Incremental Mods and Measurements

    Maybe Zach @ ZMF.
  12. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    Tune to taste, not everyone experiences a ~15 dB gain @ ~3 KHz because of anatomical differences, keeping in mind you might be used to darker headphones. The treble peak needs to be addressed in my opinion, I'd broaden the compensation to the 8 and 12 KHz bands with the stock pads.
  13. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    Those are uncompensated measurements that show all ear-related gains of the HATS apparatus, there is supposed to be a large hump around 3 KHz (~12 dB) because that's where the main ear resonances lie, and you don't really want to cancel those because that's the way we hear everything. The other...
  14. c61746961

    Official Schiit Vali 2 Thread

    Does it happen in both channels? Perhaps the contact between the jack and plug is rusty and has limited bandwith. Try cleaning the plug with isopropyl alcohol and test again, there are recurrent contact problems with the cup jack.
  15. c61746961

    Fostex T50RP Incremental Mods and Measurements

    You will find these are quite easy to tune once you figure out the 'actors', I'm working on some mods that I plan to publish once I find the time, feel free to PM me if you have any details to discuss.
  16. c61746961

    Fostex T50RP Incremental Mods and Measurements

    Yeah, the bass goes down the hill but in exchange you get much better behavior @ 4 KHz, aside from the missing sub-bass, the FR lies within 5 dB which IMO accounts for 'mild' coloration. They really do sound better than the stock mk2. Want your bass extension back? Just put tape over some of the...
  17. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    Please be aware that using a plug that doesn't seal the jack on the left cup (like the V-Moda cable) will impact pressurization in the chamber, imparting a slight imbalance in the lower frequencies. This can be alleviated by placing a ball of putty or something similar around the connector on...
  18. c61746961

    [Review] The Thinksound On1 On-Ear Headphones - A Prodigious Set Of Wooden Headphones

    I sold mine because I wasn't listening much on the go, but they're decently portable and comfortable for me. I still have access to them sometimes and I still enjoy the sound very much. I modded that pair to lower the bass a few dB. They fold relatively compact but I wouldn't throw them naked...
  19. c61746961

    Fostex T50RP Incremental Mods and Measurements

    Try the cosmetic pad mod, it's the 'nick n' mod, you don't need to be very meticulous to get good results, try varying amounts of perforations in the cosmetic pad to tune the bass.
  20. c61746961

    The AKG K7XX Massdrop First Edition Thread

    I saw measurements without that material 'somewhere' and the bass level rises ~1 dB.
  21. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    I prefer taller pads as well, I enjoy the increased headstage.
  22. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    Over the paper, try not to remove that paper unless you are really sure you know what you are doing.
  23. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    Use some breathable material like felt over the vents or behind the driver.
  24. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    It's easy to rip the lips, thankfully the mk3 baffle assembly makes it easier for ripped pads to stay in place. With the mk2 cups a brainwavz ripped pad will slide right off unless you use adhesive.
  25. c61746961

    Fostex new RP headphones - T50RPmk3, T40RPmk3 and T20RPmk3

    I'm in the process of getting a few popular pads and do a mod based on those. I think any pad with an opening larger than the stock pad will impart a treble spike.
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