I wonder if thereâs a way to hollow out a broken set of headphones and mount these inside. I think theyâd slide into Grados, but thatâs not such a huge improvement. You could have fun tuning that cup though.
Guys, what mods did you use for your KSC75, I know the usual one with the headband mod where you replace the ear clips with a headband instead. I also know the MMCX mod where you can make your KSC75s have a detachable cable.
I am curious, what is the Kramer mod? does it have any benefits for it?
The Kramer mod involves drilling out more parts of the front grill to let through more bass/treble etc. But itâs a hard one to get right because everyone prefers different sounds, they hear differently and itâs a destructive process, so you canât just copy the way someone else did it. If you drill out too many holes for more bass you canât go back if it sounds bloated.
If you want to play with the sound itâs better to start with pad swapping.
Thereâs this post on DIY-Audio-Heaven that takes FR measurements on the coin mod and Kramer mod for the KSC75.
I canât say for the titanium drivers, but 5 holes in my Porta Pro driver grills did change the extended treble quite a bit. I couldnât discern any difference below 5kHz through frequency sweeps, but peaks past 5kHz became more piercing, and there seemed to be less roll off past 10kHz. I started noticing treble detail in music I couldnât before.
Personally wouldnât Kramer mod the KSC75 or KTXPRO1. Stock Porta Pro treble is really lacking in comparison, and Iâm afraid it would make the treble a bit too sharp for my tastes.
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Then I will take your word for it, and I guess the easier mods will have to do for me, like Yaxi pads replacement, if I want a headband, I would go for a headband mod and finally some MMCX mod in the possible near future for I have learned how to solder some stuff ever since I have fixed my M40x with some soldering done.
EQâd them to my HRTF based on the Griesinger method. Done. No other changes. 
The Kramer mod has 2 parts: 1. you drill extra holes in the front grille of the driver to allow more upper treble to pass, 2. you switch to deeper pads (not necessarily âthickerâ as in material density, just putting more distance from driver to ear) with round holes cut in the center, a.k.a. âcoin moddedâ, to recover the bass that is lost due to step 1 (which you can see on the DIYAH graphs, where they performed the 2 steps separately).
I got good enough results with EQ to not care to risk modding mine, but since I got a new pair in 2019 and stopped using my older one, and also have a Massdrop one, I might try it on my old pair one day just to see if I like it. I wouldnât mid some extra air or slam or both out of these. But really I like my âmainâ pair enough to not want to touch its structure.
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My Parts Express headband arrived today. For the price of a candy bar this makes my KSC75 much more enjoyable to me. Not a huge fan of the ear clips. I robbed the Yaxis off my Porta Pros to give them the full treatment. Yeah, gonna have to buy some Yaxis for these too because they sound great and I need to wear these more often.
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Yea!!! I have the same setup and use if OFTEN, even tho I have Sundaras in use most of the time. These make my personal âSâ tier, lol. Have fun!
Itâs so hard to explain to people that a simple $20 headphone such as this sounds better than most of the gaming headsets. Love these, might switch to portapro just cause I like the headband design comfort a little more. KPH30i was a bit muddy for me but these are like just right. Been using them on my walks a lot of late especially if I am not going into town otherwise I wear my Lagoon ANC or something. I really should try some of kossâs other products at some point
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psst KTXPRO1. Fit is shit, but itâs a KSC75 with some more bass :^)
Iâm getting a Pro4AA in the retro bundle, so it will be interesting how Iâll feel about it. As much as Zeos hates them, seems some people really like them, but still inferior to vintage ProAAAâs.
I will take a look at them, looks like the typical yaxi pads will fit them as well so should work out. Not sure how I feel on the headband though, less you can actually change the headband
Headband is similar to KPH30i. Even the shortest setting is too big for me, but I do have a small, roundish head.
The big issue is the stock pads may as well not exist, but Yaxis ruin the soundstage and tonality for me. Itâs interesting.
hmm, thatâs rather unfortunate. Wonder if theres a good pad replacement then that wonât kill the sound. Nah, I would just remove that blue strap and make a custom one for it if anything as far as comfort goes⊠I have a large head though so, should fit
Maybe foam plantronics or pleather doughnuts. I didnât experiment much. I settled with My unused Porta Pro stock cushions, which are I kid you not twice as thick as stock KTX cushions. Tolerable enough for me.
I donât use these often, but itâs pretty amusing once in a while.
Edit:
Just look at these. I wanted to love them but I couldnât 
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I could probably try some like grado pads on them, they can fit the ksc75 decently well.
I believe the portapro has thicker cushion than the ksc75 doesnât it?
PP uses a softer foam, but size is same. I wonder if the scratchier KSC75 foams are more less treble dampening tham Porta Pro cushions. Now Iâm curious.
worth looking at, foam density does seem to alter treble
edit: just saw the picture, oh my thatâs beautiful.
Has anyone heard of or own the Yuin G1A or G2A? Apparently theyâre by a rather obsucre manufacturer Yuin that modified the Koss 60 ohm driver to their liking. G1A is 150ohms(!) and $115 on Penon Audio. There was some talk about it on HeadFi, but not much.
Iâve been in a bit of a craze for clip ons, so I got to find out about some interesting stuff.
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Ooooooo now this is interesting. Iâm gifting my KSC-75 to my sister for Christmas so I might have to check this thing out.
Iâm on the hunt for weirder clip-ons that are long discontinued right now, but may pick up a G1A if theyâre still around months or years later.