Koss KPH30i appreciation thread
Dec 31, 2020 at 3:22 AM Post #211 of 267

Josheto

New Head-Fier
Joined
Dec 1, 2020
Posts
13
Likes
7
Location
Macedonia
In the Z-review, he mentioned that after the Grado mod was done, he needed to crank up the volume (he was also using a class-A rebel amp while testing them). I'm planning to use these for casual listening, directly from my cell phone. So, I'm now wondering if I need an amp to drive them properly after swapping out the pads.
Take our the stock pads when doing so and you should be good, while the kph30i does scale well , you dont need an amp for it
 
Jan 4, 2021 at 5:18 PM Post #212 of 267

FYFL

1000+ Head-Fier
Joined
Aug 24, 2020
Posts
1,041
Likes
1,158
Location
nyc

This mod (above) did not work. Fit was fine. Performance not so much. Went back to trial and error route.
5BE6EBB4-27B6-425F-A0AF-6DD298699BC8.jpeg
 
Jan 9, 2021 at 8:00 AM Post #213 of 267

FYFL

1000+ Head-Fier
Joined
Aug 24, 2020
Posts
1,041
Likes
1,158
Location
nyc
So far. This is the best modded version I came up with. With hybrid pads, various foam variants and silver/silver-plated cable, this cans are killer. I could describe the sound but it won’t do you any good.
This headphone can compete with headphones up to $400. And beats many of them.
DF859B11-02FD-4085-9447-CB0A316C3516.jpeg
 
Last edited:
Jan 9, 2021 at 12:41 PM Post #214 of 267

waynes world

Headphoneus Supremus
Joined
Jun 21, 2012
Posts
11,779
Likes
4,595
So far. This is the best modded version I came up with. With hybrid pads, various foam variants and silver/silver-plated cable, this cans are killer. I could describe the sound but it won’t do you any good.
This headphone can compete with headphones up to $400. And beats many of them.
DF859B11-02FD-4085-9447-CB0A316C3516.jpeg

Awesome! Which elements do you think contribute the most to the sound quality? How much do the pad changes alone contribute? That's pretty much all I would have the skittles to do.
 
Jan 9, 2021 at 9:12 PM Post #215 of 267

FYFL

1000+ Head-Fier
Joined
Aug 24, 2020
Posts
1,041
Likes
1,158
Location
nyc
Awesome! Which elements do you think contribute the most to the sound quality? How much do the pad changes alone contribute? That's pretty much all I would have the skittles to do.
In this mod I was trying to achieve few things. Better comfort than “Grado” pads provide. Retain soundstage to some degree that those Grado pads provide. Make them more presentable and leak less sound to the outside.
What I did was use Grado pads as a foundation. Had to be trimmed on sides and cut flash with the driver on the ear side. All that to fit the hybrid pads. Pads are great as far as sound quality goes. From half a dozen pads that I have tried, these are the ones to get. Not sure what they are replacements for as I bought them for this particular project exclusively. These few steps everyone can do with some scissors and patients.If you’re happy with the results, there’s no need to get crazy with farther tuning. For me, bass was a bit muddy and top end a bit recessed. So I enlarged round opening for driver on Grado pad. It helped but then top end became a bit too sibilant. Not a lot but bothersome still. So I glued extra thin hard felt around the driver, covering all exposed plastic. Inside of the driver cup was sprayed with think coat of liquid rubber. Original tuning foam was reused as in stock. Memory foam was used on the outside to get some better bass definition. Bringing presentation a little closer and improving imaging. Right now, I just finished painting all plastic parts and added some other things. I’ll post a pics tommorow.
 
Last edited:
Jan 10, 2021 at 2:10 PM Post #218 of 267

FYFL

1000+ Head-Fier
Joined
Aug 24, 2020
Posts
1,041
Likes
1,158
Location
nyc
Few pics.

Wood “diffuser/cover” added. Mostly esthetics. Just tested it. Doesn’t affect the sound in any significant way.
DF221C0F-C62B-4F11-B422-72F984229C4F.jpeg


Side view. Also added wooden extensions for cable going into headphone-shell. Makes it more secure that’s about it.
8A1F1D69-2754-4A03-B34D-DD1B320C8D97.jpeg


Hammered gun metal paint finish
3BE113E5-EB82-47D9-809E-E6ACF12B0AEB.jpeg


Inside the cup.
A99A5E29-10F3-4301-948B-20CBA4AB3193.jpeg


Already mentioned memory foam running on the outside part of the shell. Helps with imaging and cleans up bass a bit
8F1F79ED-3D00-4B10-8C45-F3BF78B0BD77.jpeg


Enjoy.


BEB3D125-C5ED-49B6-A871-16B215068DFB.jpeg

B7EA7955-5556-4E17-BB88-E9C3826929F3.jpeg
 
Last edited:
Jan 27, 2021 at 12:36 PM Post #222 of 267

waynes world

Headphoneus Supremus
Joined
Jun 21, 2012
Posts
11,779
Likes
4,595
Jan 29, 2021 at 4:21 PM Post #223 of 267

DaveWho1

New Head-Fier
Joined
Jun 26, 2020
Posts
3
Likes
0
Location
Far Nor-Kal
Last edited:
Jan 29, 2021 at 5:41 PM Post #224 of 267

waynes world

Headphoneus Supremus
Joined
Jun 21, 2012
Posts
11,779
Likes
4,595

Welcome David! Somewhere in this thread I linked the ones that bought, but those look like the correct ones!
 

Users who are viewing this thread

Top