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DIY Earbuds

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  1. HungryPanda
    Ended up using two of Qigom CM5 16mm drivers in a MX760 shell, had to glue them on then use a pair of rubber rings to cover the join. Sound fantastic, I prefer them without foams.

    20190327_231706[1].jpg
     
    subwoof3r and DBaldock9 like this.
  2. DBaldock9
    During this current AliExpress Sale, I'm ordering ~24x 3.5mm / 2.5mm DIY cables, to get some of my earbuds assembled more quickly. :ksc75smile:
    I still have a box full of wire, to braid into earbud cables, as well... :wink:
     
    HungryPanda likes this.
  3. subwoof3r
    My yet first "lemon" PK2 MMCX mod
    it's going to be refreshing for this upcoming summer!

    PK2_MMCX_zoom.jpg
    PK2_MMCX_global.jpg
     
    rahmish, HungryPanda and DBaldock9 like this.
  4. ForceMajeure
    I dig the color matching! it looks great
     
    DBaldock9 and subwoof3r like this.
  5. subwoof3r
    Nice, we are lacking of MX760 mods those days (generally speaking), maybe I will make one once I will settle with all my MX500 shells mods :)
     
    HungryPanda likes this.
  6. hungphi93
  7. HungryPanda
    Looks very nice indeed, well done
     
    seanc6441, DBaldock9 and hungphi93 like this.
  8. ForceMajeure
    Some of you might be interested in the mod I just did.

    I call it the X6 shell mod on RW-9.

    I have received the yincrow RW--9.

    Compared to the X6 (both using donuts foams), the RW-9 stock do have a wider soundstage and better separation BUT I found them to be lacking a bit too much in the lower mids department.
    True, they sound cleaner than the X6 but the they are slightly on the shrill side of things with too much upper mids emphasis compared to the X6. I wasn't satisfied, I just wish they had slightly more lower mids even with some added midbass like the X6 had.

    some argued that the X6 had too much midbass bleed but I preferred them in tonality compared to the RW-9, although the RW-9 are more competent technically with more depth and better separation.

    I tried adding full foams instead of donuts, they gained in bass and the upper mids/lower treble weren't as prominent anymore but I lost in detail compared to the X6 (with donuts foams)

    I tried double donuts on the RW-9, thinking it will add more bass to counteract the upper mids, but it didn't work out and they were still too prominent against the rest of the sound sig for me...

    Long story short I was thinking of punching the backfoam on the RW-9 shells to allow for more venting thus adding more midbass but before I did so I decided to swap the shells keeping their back foams respectively. So I am using an X6 backshell with the RW-9 drivers
    The X6 backfoam allows for a better back venting bringing back a bit of warmth and lower mids. So far I prefer the sound

    IMO they sound better then RW-9 stock. Having better tonality not lacking lower mids as much anymore

    Maybe some of you would like to try the switch. IMO it's worth it.
    I might consider tweaking the back foam on the RW-9 shells later and see if I can attain more control compared to the X6 shell used with RW-9 drivers but for now it will do.
     
    HungryPanda likes this.
  9. seanc6441
    You can usually achieve a low mid bump by getting the driver closer to your ear. This means you can tune the earbud to sound best with thin or no foams, and by using it without thick foams in theory you will get fuller mids (the bass will also sound warmers and less extended as you are reducing seal and increasing airflow most likely. But the low mids from 200-800hz definitely sound fuller to my ears.

    I'm also someone who enjoys the right amount of low mid emphasis so that the sound is full, contrasting with brighter upper mids makes a richer sound.

    This trick works for me.
     
    Last edited: Apr 3, 2019
    DBaldock9 and ForceMajeure like this.
  10. ForceMajeure
    I used the foams that came with them, I didn't have any thinner foams on hand, also using thinner foams might reduce the seal I get with the buds thus reducing bass. you are right though if one could get them closer against the ear the mid bass and part of the lower mids would be more prominent. but it's a balance act as always with buds.
     
    DBaldock9 likes this.
  11. seanc6441
    You're right in that the perceived mid bass increases as the sub bass drops more dramatically than the mid bass with thinner less sealing foams.

    That's why my main criteria for modding earbuds these days is: Good bass response (deep and punchy without too much bleed into mids) and good low mid quality (linear and full sounding). The upper mids and treble are more easily balanced with foams and different dampening. Good bass and low mids are really hard to tune right without the driver having the quality to begin with.

    I don't know the exact science behind it but regardless of seal the FR does get more trebley the further you move it from your ear.

    But the perception of mid bass vs low mids can be confused sometimes. I try to listen to male vocal or deeper string instruments to determine how the low mids are placed.

    Some drivers can deliver extremely impressive low mid quantity regardless of position (ourart ti7 for example which has the driver recessed 2+mm yet delivers very full low mids) but most mx500 earbuds need to sit pretty close to the ear to deliver what I would consider a neutral low midrange.

    That's why I tend to tune earbuds to work well with thin foams if they need to sound fuller, or thicker multi hole/donut foams if they could use less low mid quantity (more rare, but an example would be the shozy bk)
     
    Last edited: Apr 3, 2019
    ForceMajeure and DBaldock9 like this.
  12. subwoof3r
    For those interested, I'm sharing my links for usual various tests when I finish each of my DIY projects :
    Enjoy :)


    btw, any recommendation about your best PK1/2 drivers ? I would like to try another drivers into my PK shells.
    Something between 32 and 150 ohms max. I have a preference in V-shaped presentation (so excellent subbass and bass, not recessed mids if possible, and much details in high frequency).
     
    DBaldock9 and endia like this.
  13. HungryPanda
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  14. subwoof3r
    DBaldock9 likes this.
  15. HungryPanda
    Those are older reclaimed drivers, the ones I posted are new drivers, I have not tried them
     
    DBaldock9 and subwoof3r like this.
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