solderdude
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Post by solderdude on Jan 4, 2016 19:57:25 GMT
Could be that the era pads don't seal well, When pressing the headphones to the head doesn't increase the amount of bass you could remove the felt inside the cups bass may return. If that felt is still too thick (and is is pretty quickly) it 'smothers' the driver and the bass disappears.
The felt inside the cup must be quite thin and is only there to lower reflactions from the rear sound. It must have 'room' in there for air flow of lower frequencies. The rear of the driver is already very close to the cups.
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Post by grinny on Jan 5, 2016 6:38:01 GMT
I remember taking off the wool felt and highs became harsh, but bass was more prominent. Then I tried putting a 1,5-2mm syntetic felt infront of drivers, that didn't improve the harsh highs as I like, so I turned back to wool felt solution.
Tho I'll re-apply donut felt and experiment with wool disc infront of driver in the weekends, let's see what happens.
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Post by c61746961 on Jan 5, 2016 21:25:45 GMT
If you're used to headphones with a mid-bass boost these could sound recessed due to the ~200 Hz dip with the Shure pads, it's not too bothersome for me but it does tend to hide some of the texture.
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oldson
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Post by oldson on Jan 8, 2016 18:09:35 GMT
what would be the preferred jumper settings on Ember for these?
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Rabbit
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Post by Rabbit on Jan 8, 2016 18:12:03 GMT
Low gain. Low output impedance is what I'd use.
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oldson
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Post by oldson on Jan 8, 2016 18:21:07 GMT
Low gain. Low output impedance is what I'd use. thats good, same as my lcd2, cheers.
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Post by grinny on Jan 11, 2016 6:41:08 GMT
OK I reapplied donut felt and removed the wool felt infront of drivers. The body of the sound returned, with more linear bass response. It seems like my wool felts were blocking too much of the sound, now I need to find a proper thickness wool felt to tame the treble. Anyone tried syntetic felt infront of drivers?
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Post by c61746961 on Jan 22, 2016 3:31:50 GMT
So I was playing with modding the HPAEC840 pads to make them sound better with the T50RP and did this: There are now 24 holes instead of 6 on the underside of the donut, this had the effect of reducing the dip at 4 KHz with the T50RP, so I decided to try them on the Uptowns. The FR went from this: To this: If anyone wanna try.
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solderdude
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Post by solderdude on Jan 22, 2016 7:18:17 GMT
That looks like a nice improvement. The 6kHz spike tends to stick out more now (+5dB ?) Some TP or felt may lower that as well.
Maybe I will give this a try on 940 pads some day. How do you make the holes ?
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Post by c61746961 on Jan 22, 2016 15:11:26 GMT
Thanks, I need to listen to them more to know if the peak really sticks out now, it was not that offensive to begin with, kinda like the KSC75.
I used a silver sharpie to mark the spots (a hole-sized blob) where I would make the holes and then cut them out with a hobby knife. I doubled the amount of holes twice so it was easier for me to distribute them visually. Not that difficult, just a wee bit time consuming.
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Post by c61746961 on Jan 23, 2016 18:02:42 GMT
I've been doing more listening and there's perhaps a bit more glare with certain music, I'm playing with materials to lower it, hard to balance without killing some air.
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solderdude
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Post by solderdude on Jan 23, 2016 21:48:26 GMT
Yes usually it is difficult to address one specific area yet leave others untouched. It's why I reach out for electronic filtering sometimes. It is much easier to address a narrow band without making undesirable changes.
Air and tonal balance are closely related anyway. When you 'flatten' the HD800 to normal levels for instance the hyper detail, super wide stereo image is greatly reduced as well.
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Crispy
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Madrigal music is playing - Voices can faintly be heard, "Please leave this patient undisturbed."
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Post by Crispy on Jun 16, 2017 15:08:42 GMT
Sorry to hear about your Tinitus Frans, hope you can get it to a managable level soon? I have a slight problem with my Philips headphones, nothing serious. I was having a listen last night through the Philips/Kameleon combo when I heard some funny noises. I took the headphones off and wiggled the cups and I can hear creaking noises. I imediately wanted to put some WD40 penetrating oil into the cups, see picture: I then thought better of it and decided I would ask your expert advice first, would something like sopy water be better? I honestly do not know what would be best to lubricate the cups as I dont want to cause any damage. TIA Chris
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Post by Mr Trev on Jun 16, 2017 16:58:19 GMT
What are the squeaky parts made of? My headband on my X2s have a tendency to squeak where the plastic rubs against some vinyl trim. A silicone based lube helped me out - I used some stuff that came with my Dad's treadmill. Any type of food grade silicone lube should work - or if you are of a liberal mind "personal lubricant" could do the trick (I won't be responsible for your S.O's reaction to when you tell him/her that KY jelly is for your headphones )
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Post by tunkejazz on Jun 16, 2017 18:28:25 GMT
...or if you are of a liberal mind "personal lubricant" could do the trick (I won't be responsible for your S.O's reaction to when you tell him/her that KY jelly is for your headphones ) xDDDDDDDD. I have to mark this day in my calendar!
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