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Slight CD3000 refurbishment (not too 56k unfriendly) - Page 4

post #46 of 59
11/14/09 at 4:34pm
yes, I saw this one...there's a lot of room for internal reverberations.

hummm, I'm surprised the R10 SS would be that huge if the cups are full of synthetic cotton wool...even the R10 manual more of less shows that the wooden cups internals are carefully curved in the inside.

OTOH, the drivers seem more angled on the R10 than on the cd3k.
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post #47 of 59
11/14/09 at 4:41pm
Thread Starter 
Quote:
Originally Posted by leeperry View Post
hah! so backwaves reflect against some synthetic cotton-wool? the driver is stuck to it? no room whatsoever for resonance
Such cottonwool can be used for fine tuning of bass response and part of the lower mids (the warmth section). A good example for an (almost) "cottonless" sound sig is the Beeeeeeeyer DT770 with its fart bass and recessed cold mids.
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post #48 of 59
11/14/09 at 5:20pm
yes, but they also kill SS AFAIK...and they do beef up the bass response.

I dunno who took those pics, but this is what the R10 manual shows...so they'd bother curving them nicely on the inside and then fill them w/ this stuff?! :



you can see that both the cd3k and dx1k have plenty of room in the cups, to add reverb and increase the SS
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post #49 of 59
11/14/09 at 6:46pm
Thread Starter 
I made some cotton experiments while trying NoXter's DT880CB (=closed back) mod, damping does a lot of things, but nothing to SS.
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post #50 of 59
11/14/09 at 6:55pm
O RLY...you used cushion stuffing I guess?

I've finetuned my cd1k low end bass response w/ some foam stuck to the cups inside.....maybe it's time for part 2
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post #51 of 59
11/14/09 at 7:07pm
Thread Starter 
I tried felt layers, cotton layers and fluffy & not-so-fluffy cotton wool (the car polish stuff).
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post #52 of 59
11/14/09 at 7:13pm
felt layers in front of the drivers? this does wonders on the beyer indeed IME, to tame down the whiney trebles

car polish stuff? I was about to use polyester cushion stuffing: http://cqmagonline.com/vol08iss01/ar...g%20around.jpg

but I like my cd1k as it is..took me a while to find the right piece/thickness of foam to get the low end bass just the way I like it

maybe I could use some more mid bass, but not too much.
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post #53 of 59
5/26/10 at 5:38pm

BTW, this guy made complete pictures of a cd3k refurbishment: http://www.geocities.jp/myaudiolife/mdrcd3000/reconstruction1.html

 

and I've found a place that sells NOS cd3k drivers for 100€ a pop....now, wth am I gonna put them? I know s2audio put them in a sa1k w/ great success...need to chew on this!


Edited by leeperry - 5/26/10 at 5:40pm
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post #54 of 59
5/27/10 at 12:50am

Or, you could have bought the actual part.    Not sure which of the two it is though:

 

http://www.partstore.com/Part/Sony/Sony/MDRCD3000/Sony/Sony/A4540109A/New.aspx

http://www.partstore.com/Part/Sony/Sony/MDRCD3000/Sony/Sony/A1054347A/New.aspx

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post #55 of 59
5/27/10 at 10:25pm
Quote:
Originally Posted by IPodPJ View Post

Or, you could have bought the actual part.    Not sure which of the two it is though:

 

http://www.partstore.com/Part/Sony/Sony/MDRCD3000/Sony/Sony/A4540109A/New.aspx

http://www.partstore.com/Part/Sony/Sony/MDRCD3000/Sony/Sony/A1054347A/New.aspx



And here::http://www.audiocubes2.com/brand/Sony/product/Sony_Headband_Assembly_for_MDR-CD3000.html?osCsid=fc0e5088d7c4e7cb07fab767b212e288

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post #56 of 59
5/27/10 at 10:33pm

I want CD3K BAD!!! anyone gets sick of theirs, you know who to call ;)

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post #57 of 59
6/2/10 at 6:05pm

hehe, this guy seems seriously upset that his replacement headband was made in China: http://tanukid.cocolog-nifty.com/blog/2009/12/mdr-cd3000-fab9.html

 

and this has got to be the most cooked cd3k I've ever seen: http://tanukid.cocolog-nifty.com/blog/2009/11/mdr-cd3000-3233.html

 

r01_001.jpg

 

I wonder if some leather conditioners could avoid having the earpads flaking out after a few months? coz those ebay pads are horrid

 

and Japanese cd3k owners always seem to speak highly of the cd900st: http://translate.googleusercontent.com/translate_c?hl=en&ie=UTF-8&sl=ja&tl=en&u=http://tanukid.cocolog-nifty.com/blog/2009/06/mdr-cd900st-ed7.html&rurl=translate.google.com&usg=ALkJrhhN6sRL-iIa4QYNzCApT7kM-Pi5vw


Edited by leeperry - 6/2/10 at 6:07pm
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post #58 of 59
6/2/10 at 6:15pm

CD900st are awesome.

 

They are impossible to find second hand, but when you do the fact that basically nobody outside of Japan knows what they are drives the price down. "a hopped up MDR-V6, I burst my side laughing"

 

If you find a set second hand get them.

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post #59 of 59
6/2/10 at 6:28pm

SONY sure make it appealing: http://translate.googleusercontent.com/translate_c?hl=en&ie=UTF-8&sl=ja&tl=en&u=http://www.sonymusic.co.jp/Music/MoreInfo/MDR-CD900ST/&rurl=translate.google.com&usg=ALkJrhizdYS4y8VNBUzwqJ7sWOpHd8w5dA

 

another comparison w/ the cd3k: http://translate.google.com/translate?hl=en&sl=ja&u=http://notwani2.blog.so-net.ne.jp/2009-03-22&ei=zQQHTM3MA4374AbR5amyDA&sa=X&oi=translate&ct=result&resnum=5&ved=0CBcQ7gEwBA&prev=/search%3Fq%3Dmdr-cd3000%2Bmdr-cd900st%26hl%3Den%26safe%3Doff

 

m_E38398E38383E38389E38395E382A9E383B3EFBC95.JPG


Edited by leeperry - 8/26/10 at 1:01pm
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