How to convert DT 880 into DT 990 (and vice versa). DT 770 Info.
Apr 5, 2009 at 6:34 PM Post #46 of 63
what do you mean no caps just felt ?
biggrin.gif


I got these drivers directly from beyer as spare parts...and I've put back the black round piece + white cloth from the 250 Ohms drivers from my stock DT770.

did you have the black round piece + white round cloth ?
 
Apr 5, 2009 at 6:40 PM Post #47 of 63
Quote:

Originally Posted by leeperry /img/forum/go_quote.gif
what do you mean no caps just felt ?
biggrin.gif


I got these drivers directly from beyer as spare parts...and I've put back the black round piece + white cloth from the 250 Ohms drivers from my stock DT770.

did you have the black round piece + white round cloth ?


Yes, just felt, but not on the back of the magnet, rolled around it like cylinder. Interesting that your Manufaktur DT770 came with diodes too, manufaktur 600Ohm DT880 does not have any.
 
Apr 5, 2009 at 7:12 PM Post #48 of 63
humm OK I don't get it..so you didn't have the big black part w/ the white cloth around it?



mine is not manufaktur, it's a stock dt770 premium/250 and I've got the spare parts(genuine leather headband+ear pads + 600Ω drivers) to mod it...I think it sounds just fine as it is
smily_headphones1.gif
 
Apr 5, 2009 at 7:58 PM Post #49 of 63
Quote:

Originally Posted by leeperry /img/forum/go_quote.gif
humm OK I don't get it..so you didn't have the big black part w/ the white cloth around it?



mine is not manufaktur, it's a stock dt770 premium/250 and I've got the spare parts(genuine leather headband+ear pads + 600Ω drivers) to mod it...I think it sounds just fine as it is
smily_headphones1.gif



Yep, that's what I meant by felt around it, but no back cap with felt, just bare magnet. BTW, where did you get leather headband?
 
Apr 5, 2009 at 8:03 PM Post #50 of 63
Sorry to be so persistent, but what should I use to attach the felt to the front of the drivers? I just want to make sure its easily reversible, and not going to damage the drivers if/when I take it off again later.
 
Apr 5, 2009 at 8:50 PM Post #51 of 63
Quote:

Originally Posted by Andrew_WOT /img/forum/go_quote.gif
Yep, that's what I meant by felt around it, but no back cap with felt, just bare magnet. BTW, where did you get leather headband?


humm, english is not my native tongue...you're losing me here
confused_face.gif


so you did have the round black plastic piece w/ the white fabric around it like on this picture : http://www.pixelz.fr/5/7/e/53fd5f03e...1d941e5ftt.jpg

but the back of the driver did not have this part : http://i36.tinypic.com/2rqn9c8.jpg

and looked like this
confused_face_2.gif

http://i38.tinypic.com/28v9ijr.jpg

hummm, were they brand new unopened ?!

well I annoyed the hell outta their german tech support for the genuine leather headband/manufaktur ear pads
atsmile.gif


Quote:

Originally Posted by cyberidd /img/forum/go_quote.gif
Sorry to be so persistent, but what should I use to attach the felt to the front of the drivers? I just want to make sure its easily reversible, and not going to damage the drivers if/when I take it off again later.


I added some very thin felt on top of the drivers foam, it sounds much better now and a lot more comfy!

if you don't have 2 left hands, it should go fine...but be careful when taking off the pads, never pinch the velours always hold the black lip
 
Apr 7, 2009 at 4:13 PM Post #53 of 63
Quote:

Originally Posted by leeperry /img/forum/go_quote.gif
humm, english is not my native tongue...you're losing me here
confused_face.gif


so you did have the round black plastic piece w/ the white fabric around it like on this picture : http://www.pixelz.fr/5/7/e/53fd5f03e...1d941e5ftt.jpg

but the back of the driver did not have this part : http://i36.tinypic.com/2rqn9c8.jpg

and looked like this
confused_face_2.gif

http://i38.tinypic.com/28v9ijr.jpg

hummm, were they brand new unopened ?!

well I annoyed the hell outta their german tech support for the genuine leather headband/manufaktur ear pads
atsmile.gif



I added some very thin felt on top of the drivers foam, it sounds much better now and a lot more comfy!

if you don't have 2 left hands, it should go fine...but be careful when taking off the pads, never pinch the velours always hold the black lip


Yep, that would be correct, no cap on the back of 600Ohm brand new, unopened DT770.
 
Apr 7, 2009 at 7:13 PM Post #55 of 63
Quote:

Originally Posted by leeperry /img/forum/go_quote.gif
and they're very bassy ?!

QQQ said that the DT770 became very bassy w/o the back cap..


Haven't noticed that, I am awaiting for a replacement pair as the first one had some impedance mismatch between drivers, so I'll check that one too, may be it was just one time deal sloppy assembly.
 
Apr 7, 2009 at 9:42 PM Post #56 of 63
Quote:

Originally Posted by Andrew_WOT /img/forum/go_quote.gif
the first one had some impedance mismatch between drivers


humm? FR mismatch you mean? how could you know that there's an impedance problem
confused.gif
 
Apr 8, 2009 at 2:22 AM Post #57 of 63
Quote:

Originally Posted by leeperry /img/forum/go_quote.gif
humm? FR mismatch you mean? how could you know that there's an impedance problem
confused.gif



Multimeter.
 
Apr 8, 2009 at 1:12 PM Post #58 of 63
Quote:

Originally Posted by Andrew_WOT /img/forum/go_quote.gif
Multimeter.


and how did it translate IRL? volume mismatch?

BTW, how do you measure it exactly? I happen to have a multimeter
redface.gif
 
Apr 8, 2009 at 5:55 PM Post #59 of 63
Quote:

Originally Posted by leeperry /img/forum/go_quote.gif
and how did it translate IRL? volume mismatch?

BTW, how do you measure it exactly? I happen to have a multimeter
redface.gif



If you play mono recording the staging will be off center.

300px-Jack_plug.png


The sleeve (1) is ground, tip (3) is left channel, ring (2) is right one.
 
Apr 8, 2009 at 6:57 PM Post #60 of 63
haha, they say AVS is "the place to become unhappy"....how about head-fi
biggrin.gif


OK thanks for the picture, I recabled my 770 so no worries
wink.gif


but I mean you can do it on the phones unplugged, or you have to play music through them and plug the multimeter on the drivers connectors?

did you have a HUGE diff between the 2
confused.gif


mono sounds pretty centered here...well the 2 drivers don't have the exact same FR of course.
 
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