Moonwalker
100+ Head-Fier
- Joined
- Oct 23, 2001
- Posts
- 367
- Likes
- 17
Hi everyone!
From some post in the past few days, I read something about removing the foam pad inside the earcup of HD600. I told to myself many times: You will not change ANYTHING on that gem (HD600)!!! But, after some time, I decided to go!
It's easy to remove and reinstall the velour pads, so I removed the foam covering the driver and vinyl second diaphragm. On one earpiece only! Compared... More detail, less bass, but only by nuance. Comfort unchanged, my ear never touch the now hard inside of earcup.
Next step: sweep tone measurement by AKG C1000S mike. Results are: Bass atennuated by some 1-2 dB, mids almost the same (1dB tolerance changes), trebles above 15000Hz boosted by about 1,5 dB.
This makes the sound less forgiving to bad records, maybe more fatiguing, more 'bright' sound towards STAX, as I remember, highs are certainly less 'veiled', bass hump around 150-200 Hz is less massive. In general, more balanced sound, like speakers when you remove the front grills, you hear the diaphragm directly, without any damping material in front of it. When the driver is quality one, there's no need to cover them and damp them.
I suspect the thin foam makes more bass, less treble, maybe smooth out lower mids and, MOST IMPORTANTLY, covers the driver for protection! When you are careful like me, you can try it and decide by yourself.
Happy listening.
Your
Moonwalker
From some post in the past few days, I read something about removing the foam pad inside the earcup of HD600. I told to myself many times: You will not change ANYTHING on that gem (HD600)!!! But, after some time, I decided to go!
It's easy to remove and reinstall the velour pads, so I removed the foam covering the driver and vinyl second diaphragm. On one earpiece only! Compared... More detail, less bass, but only by nuance. Comfort unchanged, my ear never touch the now hard inside of earcup.
Next step: sweep tone measurement by AKG C1000S mike. Results are: Bass atennuated by some 1-2 dB, mids almost the same (1dB tolerance changes), trebles above 15000Hz boosted by about 1,5 dB.
This makes the sound less forgiving to bad records, maybe more fatiguing, more 'bright' sound towards STAX, as I remember, highs are certainly less 'veiled', bass hump around 150-200 Hz is less massive. In general, more balanced sound, like speakers when you remove the front grills, you hear the diaphragm directly, without any damping material in front of it. When the driver is quality one, there's no need to cover them and damp them.
I suspect the thin foam makes more bass, less treble, maybe smooth out lower mids and, MOST IMPORTANTLY, covers the driver for protection! When you are careful like me, you can try it and decide by yourself.
Happy listening.
Your
Moonwalker