My DIY Modded KSC-75, absolutely loved the sound. Keeps me company before i get a new pair of headphones after the tragedy.



Recabled using canare starquad cables. Changed the pads, padding from an old altec lansing ( better bass impact, night and day difference, but killed the highs ). Taped the center of the mesh ( bring back the highs!! )

the sound quality when compared to an original koss ksc-75 side by side ( my friend has it ), tamed highs ( i find the original ksc75 to be slightly too bright for my taste ), and most significantly, better bass impact ( in fact, we're talking grado sr-60's bass here. =) Others are not affected though. Absolutely loved it. Koss certainly got a winner product here.

mADmAN:
Its some cheap plug i got from the same shop that sell canare plugs at jalan pasar, they were out of canare plugs when i was there so i just ask for an alternative.

nocar:
recabling is pretty easy. First, u need to take out the earhook, just pull it off from the headphone.
Then u need to take off the cover that covers the solder joints, its below the earhook and in a darker grey colour, u can see in the pict that i had cut the cover in half for more movement space for the earhook.
After u took out the cover, u can see the solder joints, just unsolder them and solder in ur new cables. The workspace there is pretty tight so be careful though =)

Sry i didnt take step by step pic and for the late reply, was away for cny =)

nocar:
I open the cover with a small screwdriver that i use to screw my glasses. Just slowly push it in the gap between the cover and the phone and push it up, and repeat the process around the cover.

eokboy:
Haha, its really heavy when i lay the cable on the floor up to the phones. I lay the cable on the table circling around the keyboard in between the keyboard and the mousepad, cant feel the weight of the cable. No probs for me since i use the phone primarily for my pc =)

eokboy:

Using the original pads wif the aluminium wire mesh clears up the mid and tamed the treble a bit ( really ), adding the leather pads in my case totally killed the highs. If i add the original pad with the leather pads over it, the bass becomes totally bloated to the extent of cheap computer speakers' bass. What i did was to cellotape the center of the mesh, brings back the treble sparkle ( not as bright as original ) and now the bass is tight and has better impact than the original ksc-75.

From my previous experiences with my grado and alessandro headphones, pads do make a difference, but with the ksc-75 the difference is incredibly huge.

The general idea i get is:
If u have a chamber in the pads, the bigger the chamber, the more bass.
Treble depends on the amount the soundwaves reflects, and also depends on the material of reflection. Hard material ( leather ) = better treble. Soft material ( foam ) = less treble.

The reason i cellotape the center of the mesh is to create more reflections for the treble, instead of the soundwaves travelling direct to the ear ( which totally killed the treble in my case ). The cellotape made a huge difference.

Just my observations from 2 weeks of experimenting with pads and materials to obtain my "perfect sound". Hope it helps u ( as well as all fellow DIYers out there ).

p/s: It is also to note that the above methods only changes the frequency response of the headphone, other aspects like accuracy of instrument representation and etc are due to the driver and cannot be changed though =)