Hitashi
New Head-Fier
- Joined
- Feb 2, 2017
- Posts
- 5
- Likes
- 5
I have a background in high end DIY Loudspeaker assembly and Crossover filtering. I have owned a great deal of headphones, and i stumpled upon a website called "innerfidelity" but what bothered me, were the fact that the frequency response graphs, didn't match up with what my ears were hearing at all, in fact so far from it, that it just puzzled me..!
https://www.innerfidelity.com/images/AKGK702.pdf
If that graph were true, 50hz - 100hz would be blasting out at enormous SPL relative to the upper midrange and the highs... This would be a very bassy warm sounding, with an obvious lack of mid and highs.
I had to find someone who knew how to measure a headphone, and i stumpled upon another site called "Rtings"
Here we have their measurements of K702:
https://www.rtings.com/headphones/1-1/graph#332/1184
NOW! this looked like a graph showing me exactly what i were hearing, a cold sterile sharp harsh aggressive headphone, with a huge spike in the upper mid, and gigantic spikes in the highs. Using 64bit ASIO direct parametric EQ filters from Jriver simply proved it to be true, filtering out the spikes worked out perfectly. By that time i had concluded that Innerfidelity's method of compensating the response, were completely in the woods.
Well long story short, you can make your K702 sound like an expensive florstander.
I'm used to the quality delivered by top shelf drivers like my beloved tweeter +- 0,5dB linear
http://www.scan-speak.dk/datasheet/pdf/d2904-710002.pdf
I worked out a complete fix of the driver, this includes using the bass mod, which i will link in here, it's very easy, i did it in two seconds using only 2 nails and a tweezers. Here is a video guide
And then you download Jriver apply these Parametric EQ filters
267 hz
0.59 Q
-1,59 dB
------------
1111 hz
1,15 Q
+0,76 dB
-----------
2265 hz
0,91 Q
-5.43 dB
-----------
7097 hz
1.85 Q
-4 dB
Then, try and a/b test filters on, filters off.. This will show you exactly, how terribly harsh and peaky this headphone is from the manufactures side.
https://www.innerfidelity.com/images/AKGK702.pdf
If that graph were true, 50hz - 100hz would be blasting out at enormous SPL relative to the upper midrange and the highs... This would be a very bassy warm sounding, with an obvious lack of mid and highs.
I had to find someone who knew how to measure a headphone, and i stumpled upon another site called "Rtings"
Here we have their measurements of K702:
https://www.rtings.com/headphones/1-1/graph#332/1184
NOW! this looked like a graph showing me exactly what i were hearing, a cold sterile sharp harsh aggressive headphone, with a huge spike in the upper mid, and gigantic spikes in the highs. Using 64bit ASIO direct parametric EQ filters from Jriver simply proved it to be true, filtering out the spikes worked out perfectly. By that time i had concluded that Innerfidelity's method of compensating the response, were completely in the woods.
Well long story short, you can make your K702 sound like an expensive florstander.
I'm used to the quality delivered by top shelf drivers like my beloved tweeter +- 0,5dB linear
http://www.scan-speak.dk/datasheet/pdf/d2904-710002.pdf
I worked out a complete fix of the driver, this includes using the bass mod, which i will link in here, it's very easy, i did it in two seconds using only 2 nails and a tweezers. Here is a video guide
And then you download Jriver apply these Parametric EQ filters
267 hz
0.59 Q
-1,59 dB
------------
1111 hz
1,15 Q
+0,76 dB
-----------
2265 hz
0,91 Q
-5.43 dB
-----------
7097 hz
1.85 Q
-4 dB
Then, try and a/b test filters on, filters off.. This will show you exactly, how terribly harsh and peaky this headphone is from the manufactures side.
