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  1. Konstantin690

    USB-C to 3.5mm adapters (DAC) - Let's find the best

    Hey all, What's the latest USB C Dongle with a REALTEK chip? .
  2. Konstantin690

    post your grado mods....

    I would go for R1s, especially if you're gonna install them in a lower profile wood cups.
  3. Konstantin690

    Grado modders go Magnum

    Got a pair of their "original" PS1000e drivers, sorry but they are nowhere near the sound, pair matching and build quality of Magnum or Elleven Acoustica offerings, plus, you need to make some sort of protective shell to use them, these are 44mm raw drivers and most cups are designed to accept...
  4. Konstantin690

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

    The R1/P1 drivers are designed for L-Cushions, so no surprise. For what it's worth, not all Chinese L-Cushions sound the same, the foam density used varies.
  5. Konstantin690

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

    Colourfull, I like them a lot. They need plenty of hours to deliver... Have you tried L Cush?
  6. Konstantin690

    Grado modders go Magnum

    Any of you guys ever heard any of the Eleven Acousticas drivers as they intended? A couple months ago I purchased a complete set of R1 drivers with RS1 Clone cups and Cable for a friends build, they did the assembly (free of charge) and sent them ready to be installed in the headband, they sound...
  7. Konstantin690

    Grado modders go Magnum

    Can't agree more, nothing beats personal taste.
  8. Konstantin690

    post your grado mods....

    Nicely done, the Dynamat on the magnet cover looks like it's blocking the two tiny holes there, it should not.
  9. Konstantin690

    Grado modders go Magnum

    Don't want to throw poop on the whole foam driver mounting idea but I've mounted drivers in wood cups any way possible and directly press fitting the drivers into the wood cups sounds way better to my ears. The "simple" explanation I have for that difference is that when using foam strips to...
  10. Konstantin690

    Grado modders go Magnum

    Inductance is very low to affect an LCR circuit, you only need Impedance graph.
  11. Konstantin690

    Grado modders go Magnum

    Uhm.... You can't accurately measure T/S parameters on a bending wave driver such as this.
  12. Konstantin690

    Grado Modders Go Nhoord?!?!

    It's not just an odd read, it's proof of complete ignorance of basics electro-acoustics, plain and simple.
  13. Konstantin690

    Grado Modders Go Nhoord?!?!

    Let me know when you find such a design from a serious headphone manufacturer. BTW, it is wrong to call this Isobaric. Isobaric needs a sealed back enclosure.
  14. Konstantin690

    Grado Modders Go Nhoord?!?!

    What you measure with the multimeter is DC Resistance, audio signal is AC, drivers needs to be match in their AC Impedance curve, DC Resistance is absolutely meaningless. The drivers voice coil is also an Inductor, hence the rise in the Impedance Curve at high frequencies. By wiring drivers in...
  15. Konstantin690

    Grado Modders Go Nhoord?!?!

    Drivers connected in series needs to be PERFECTLY MATCHED (which are not) if you want any decent sound. Do not waste your time, a single, good driver is all it needs.
  16. Konstantin690

    Grado Modders Go Nhoord?!?!

    Assuming the drivers are 32ohm this will represent a brutal 10 ohm load to the amplifier. Isobaric is never a good idea.
  17. Konstantin690

    post your grado mods....

    From my experience I can tell you that the back chamber dimensions has a way more profound effect on perceived sound than the cup material used.
  18. Konstantin690

    post your grado mods....

    +1 I highly doubt that Carbon Fiber or any other composite will sound any different than cheap Grado plastic housings.
  19. Konstantin690

    Grado modders go Magnum

    You are not going to accomplish what you are describing with a Grado-ish design no matter what drivers you are going to use, the chamber is to small and narrow and mainly responsible for the Grado-esque sound signature. Have a look here...
  20. Konstantin690

    Grado modders go Magnum

    "Blutacked" the driver into the cups is not a good practice IMO, you need to press fit them, the drivers frame must be in TIGHT direct contact with the wood, which requires some precision cup machining. The longer the acoustic chamber the higher in amplitude its ~2kHz resonance will be, an...
  21. Konstantin690

    Grado modders go Magnum

    The mounting method of the driver is of a huge importance when trying to evaluate the different sonic character of a wood type, anything less than firmly press fitted the drivers into the wood cups and they will all sound the same. That being said, the back acoustic chamber dimensions are more...
  22. Konstantin690

    post your grado mods....

    You should talk to @sling5s as he has tried pretty much all the Grado drivers available and is more qualified to give you a honest opinion.
  23. Konstantin690

    post your grado mods....

    The main advantage of an Isobaric driver arrangement is that that you can reduce the cabinet volume in HALF and still maintain the low tuned frequency of a double sized box and that's in CLOSED box. For it to maintain the supposedly "reduced distortion due to linear diaphragm movement" the two...
  24. Konstantin690

    post your grado mods....

    What are you trying to accomplish with an Isobaric design? An Isobaric design will only degrade the sound for several reasons.
  25. Konstantin690

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

    I was about to use the R1 I already have for my future HP1000 clone build, now I have to try these, (my wallet hates you, thank you very much. :stuck_out_tongue_winking_eye:)
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