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Sennheiser and AKG using the same drivers?

post #1 of 25
Thread Starter 

A couple a weeks ago a friend gave me a pair of fairly new  AKG K77 ( he managed to brake the cable and decided he wanted an "upgrade" anyway so he bought a pair of Sennheiser 555 ). Yesterday evening I finally decided to replace the cable on the AKG's and when I opened the up the driver looked very familiar so I took apart my Senn's hd457 and indeed the drivers where identical with a single difference : the AKG's are marked 425AW and the Senn's 425C1 as can be seen from the picture. So the only conclusion I can draw is that the two companies use the same drivers ( at least in some products ) but with very different results ( the HD457 sounds a lot better then the K77 , at least until I will start to mod the K77"s :) ). It would be interesting to see if the high end models from these manufacturers share the same drives. P.S. in the picture the AKG in on the left.drivers.jpg

post #2 of 25

Interesting, i've never done such comparison. Anyone could confirm this? 

post #3 of 25

maybe same type of driver, but its most likely not the case. but we do have to take into consideration Both of those companies are German & that both those models are considered low-end taking into account their other products on the lineup, so they might just be throwing generic drivers that have been modified for their sound signature into them.

post #4 of 25

I've seen pictures of the HD600 drivers before, and they look significantly different from the K601, so I doubt this is the case in their higher end models. But I do agree, the rear of those housings are remarkably similar, and even the 425 part of the coding is the same, so perhaps they are similar / the same (a view of the diaphragms and a look into the specs may give a better idea).

post #5 of 25
Interesting find - thanks for bringing it up here.

Though I doubt they share drivers at the higher end of headphones.
post #6 of 25

If everyones really overly curious about it, I can ask my step uncle if he has any details on the similarities. (He works at Senn germany)

 

What I think of it now : Some of the parts required for the driver were purchased at the same chinese company. As both companies low-end models are made in china...

 

EDIT: I learned something i think you guys might want to know!

 

The following AKG models make use of the 425AW.

 

K55

K66

& Quite possibly the K44

 

2_280362_050ff645406cf1d.jpg

 

Sennheisers that made use of the 425C1:

 

HD 477

 

 

post #7 of 25

What is the diameter (diaphragm) of this driver?

post #8 of 25
Thread Starter 

40mm

post #9 of 25

Ahem, AKG is austrian. Not that it matters much, as even the K701s are now being made in China.
 

Quote:
Originally Posted by Keiko View Post

Both of those companies are German


 

post #10 of 25
Quote:
Originally Posted by Wildstar View Post

Ahem, AKG is austrian. Not that it matters much, as even the K701s are now being made in China.
 


 


 

Did you receive a pair of made in China K701 from a reputable dealer recently?
 

post #11 of 25

No, I'm just talking from what I've seen at the photos thread. Seems at least one of them came from Thomann, which I have no reason to not consider a reputable dealer (in fact, I was considering getting a K701 from them!).

post #12 of 25
Quote:
Originally Posted by Wildstar View Post

No, I'm just talking from what I've seen at the photos thread. Seems at least one of them came from Thomann, which I have no reason to not consider a reputable dealer (in fact, I was considering getting a K701 from them!).



Would you please kindly post the link to that photo thread or Thomann?

 

Thanks

post #13 of 25

Most interesting thing I have seen on Head-fi today. cool find.

post #14 of 25

Quote:
Originally Posted by Cankin View Post

Would you please kindly post the link to that photo thread or Thomann?

http://www.head-fi.org/forum/thread/202122/the-headphone-driver-pics-thread/120#post_7232813

http://www.thomann.de/

Post on AKG forums claiming they're all made in China: http://www.akg.com/forum/index.php/topic,3098.msg7691.html#msg7691

 

This is complete hearsay, so it should be taken with an enormous grain of salt, of course.

post #15 of 25
Quote:
Originally Posted by Wildstar View Post

http://www.head-fi.org/forum/thread/202122/the-headphone-driver-pics-thread/120#post_7232813

http://www.thomann.de/

Post on AKG forums claiming they're all made in China: http://www.akg.com/forum/index.php/topic,3098.msg7691.html#msg7691

 

This is complete hearsay, so it should be taken with an enormous grain of salt, of course.

"I'm a old customer of AKG products and I loved AKG products so far, because of the high quality AND because it's not produced in China, but in Austria and the pricing reflects that."

 

  I have to sort of agree with this, It seems most of their high-end products are still made in Austria and the pricing does reflect that. 30 euro in Germany for a $100 in-ear model in the U.S, etc. though the models like the K701 have evened out in every single country & models with higher demand could I suppose get shafted to a chinese factory. Every AKG I own says made in Austria minus the AKG K450 & K530 and with the high prices in japan, I was delighted to find them for 1/3 the price, with some models a huge steal here... even at official stores (Media Markt & Saturn)

 

@Wildstar I bought a pair of K450 from them three weeks ago to sell to a friend who really liked the sound on them, the box looked like it went through a storm & was very beat up. So I returned them & bought them from Amazon 5eu more & they came brand new and even wrapped in plastic over the box free 3-day DHL if in de.

*points to the post count of those people in the official AKG forum thread* one has a 2 and the rest are 1's...

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