Koss KSC-75 Modifications

Discussion in 'DIY' started by Deep Funk, Oct 2, 2015.

  1. ultrabike

    ultrabike Measurbator - Admin

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    I thought the same thing about the KSC-35 clips. I kept looking at them and they don't seem to adjust.

    I also prefer the parts-express headband on the KSC-75s. Much easier to position and get a good fit. More comfy for me in particular.
     
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  2. starence

    starence Almost "Made"

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    Has anyone tried modding the earclips? I was thinking of trying this mod, the photos are long gone from this old thread, but it sounds pretty straightforward.

    http://www.head-fi.org/t/193091/another-koss-ksc75-mod
     
  3. crazychile

    crazychile Eastern Iowa's Spiciest Pepper

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    This isn't so much of a mod but more of a DIY Frankenkoss... a couple weekends ago I got bored and put KTX-Pro1 drivers (same drivers as KSC-75) into a pair of Sennheiser HD 201s. It's not a quick mod and requires major surgery with Xacto, Dremel, and soldering. It took probably 1.5 hrs just to get a temporary press fit for the drivers to go into the Sennheiser baffle, but there might be some potential... I haven't taken any pictures yet but if theres any interest I could try to do that when I continue with the second phase of this. It might take me a week or two until I can get back to working on this.

    Parts cost for the project should end up at < $40 total.
     
  4. Bagged Milk

    Bagged Milk Friend

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    What exactly does the Kramer mod do subjectively? The Koss baffle holes are carefully designed to act as a waveguide and are part of the reason they're so clean and don't have violent ear canal resonance, so as such, I'm extremely skeptical.

    Kramer posted this on his mod thread on HF. It would bring on other complications indeed. Probably more so than he thinks.
     
  5. Decomo

    Decomo Almost "Made"

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    This is old thread and not sure anyone is still reading... I just got KSC75 and found that the mid sounds a bit too thin.
    Is there any mod that makes mids sounds fuller?
    The kremer mod takes center foam out from the earpad and I guess that it will bring mid even more out instead of making fuller or warmer?
     
  6. Decomo

    Decomo Almost "Made"

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    I just put holes on thin paper tape then put the tape on the center of the driver. The pine hole looks very tiny but I widened a bit after I took the photo to make it a bit more airy while taming the hot mid. It now sounds more suited to my personal taste.

    [​IMG]
     
  7. crazychile

    crazychile Eastern Iowa's Spiciest Pepper

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    I never thought the mids were too thin. But I've probably tamed my expectations with the fact that we can often buy these for ~$15 in the US. I also haven't used these with the standard ear clips for a few years so maybe they are. Maybe you can find a headband in Australia that fits, or split the shipping costs with some buddies to get a small lot of Parts Express cheapo headphones to cannibalize the headbands. I think the additional pressure from using a headband may help.

    And maybe they tame a little with a few more hours on them. I can't remember if these headphones needed a little break in or not.
     
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  8. Decomo

    Decomo Almost "Made"

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    Thank you for the suggestions. I ran this over 6 hours now and with tape mode, it is now very listenable. I usually like a bit darker sounding headphone so it can be just me. I like original earclip which just hang on ear and found them very comfortable.
     
  9. Biodegraded

    Biodegraded Friend

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    You might prefer the PortaPros. Both they and the 75s are pretty elevated around 5k, but the 75s also have a small relative bump at 3k. Or do as @crazychile suggested and put the 75s on a headband, which if it has decent pressure will bring up the bass and lower mids.
     
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  10. treboR

    treboR Friend

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    ^ agreed on the PortaPro recommendation if you like a darker sounding headphone.

    Or if you like the KSC75 earclips, you can buy a SportaPro (which has the identical drivers as the Portas), pop out those drivers and snap them into the clips. You can bend the clips inwards to get the drivers closer to your ear as well.

    This is also a cheaper alternative to the KSC35 (same drivers as the Portas too, but with plastic earclips).
     
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  11. Decomo

    Decomo Almost "Made"

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    Thank you very much for the suggestions.

    I will try to get Massdrop Koss PortaProX and try to take the driver and mount on earclip (Call me weird, I prefer earclip style).
    Getting Portapro from Drop is actually same cost as getting SportaPro locally. Getitng KSC 35 locally is not even possible as far as I understand.

    Meanwhile, I bent earclip inwards as suggested and it helped bring bass a bit more and easier to listen to. :)
     
  12. treboR

    treboR Friend

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    Yep the only way to obtain the KSC35 is thru Koss' website. I wouldn't buy them for $45 because it's cheaper to buy a KSC75 and SportaPro. I find the silicone earclips from the KSC75 more comfortable than the plastic KSC35 clips. You don't have that thin plastic ridge digging into your ear.

    Glad to hear the bent earclip is working better for you. I like mine at the stock angle because the soundstage is more open to me (in exchange for less impactful bass) but YMMV.

    Enjoy the headphones!
     
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