[Moonwalker]

Hi!

Yesterday, after series of tests I found nice way to improve mid region presence in KSC-35 and Porta family phones. I popped out the plastic grill cover (always black) in front of the driver under the foam using small screwdriver (knife also works). I made a hole in the center of it, destroying 3 pieces of plastic holding center cap and finally smoothing the surface on both sides using soldering iron carefully. Returned grille back in place and put on foam.
Sounds now a little more open, maybe lower bass is more present, but most importantly, the lower mid and mid region is more there!

Pic is attached below

You can try this if you have spare/broken Portas with grille intact and want other (better balanced) sound.

Your
Moonwalker

 

[JaZZ]

Hi Moonwalker!

Respect! You're one of the courageous guys here...

I'm interested in this modification, but although I own two pairs of Portapros, I'm in doubt if I should dare it. Yes, I certainly could do it (technically), but the fact that it's irreversible...

I guess the removing of the center piece primarily causes a loss of treble, because of the lack of the compression chamber which has been formed by it. And, well, I'm not sure if I want this to happen. One thing I have done is to cut a 2 cm hole in the foam pad (covered by the obligatory nylon gauze) to gain clarity – with success!

Greetings to Prague!

JaZZ

 

[Ken]

you are very brave. can you list items that you have lost to testing for modifcations

 

[katsudon1]

Hello Moonwalker, you sure have guts!

 

[Moonwalker]

Hi guys!

Thanx for your responses!

Ken, I lost a lot of foams and some cables or adapters.

I decided to use the modded driver on my KSC instead on original Portas because of using KSC much more on streets.

Below is a pic of them!!

Keep modding & responding!

PS: Surely the modded drivers have more details, not harsh highs, just in the pleasing way...

Your
Moonwalker