[solomon]

Recently saw a pair of HD650s new from the box. Took a close look at the drivers, and guess what I found ...

The drivers say they are HD580! Anyone can explain this to me? Do HD580,HD600 and HD650 use the same drive model called HD580?

 

[ozz]

i thought that the 580's and the 600's shared the same drivers and the 650
had a new driver.

 

[n_maher]

My HD650s do not have that writing on the drivers, I just looked.

It's long been known that the HD580 and 600 share the same drivers.

 

[d-cee]

that's bizarre, my HD580 drivers don't even say HD580 on them...

and yes, it's common knowledge that HD580 shares drivers with HD600, but not with HD650

 

[souperman]

fakes? lol

 

[kramer5150]

My understanding is they use different drivers, but Ive never taken apart a 650 to examine it up close.

 

[Chu]

This came up in this thread about an hour ago. Something is very odd with the HD650 drivers. Compare mine with upstateguy's:

Any idea what the difference is?

 

[rhymesgalore]

Same answer as i gave in the other thread:

It's NOT the driver itself, it's accoustic dampening material in the driver housing.
I once started a thread about it:
http://www.head-fi.org/forums/showthread.php?t=233239
There's some photos in there, which easily shows the difference. In the first two you can also tell what the driver itself looks like, because it's missing in the photo on the right side.

Sennheiser changed the material from silk to a metal fabric during the production run.
According to an Sennheiser engineer i spoke to, there's no difference between the two accoustically.

 

[HiFlight]

Mine HD650 looks like the bottom pix.

 

[Andrew_WOT]

Accordingly to Sennheiser USA parts finder, 580 shares drivers with HD600, and I am pretty sure HD650 and HD600 use different drivers.

 

[[AK]Zip]

The HD580 and the HD600 drivers are the same. The drivers for the HD600 are just better matched. The HD650 used completely different drivers.

As for the 2 pictures Chu posted. The top one has the silver colored (metal base) material for the covering. The bottom one has a black colored (material base) material for the covering. This has no affect on the sound, but the top picture with the metal base covering is a newer HD650. This is also the same with the HD580 and HD600. Once again it makes no sound difference.

I hope that explains everything.

Thanks,
Alex

 

[solomon]

Those who recently bought HD650s would you guys please take off the earpads and see what the drivers say on them.

I opened a brand new HD650s and again, their drivers say HD580, which is very depressing, HD650s say they are HD580s !

 

[Chu]

Let's assume for a second the drivers are the same.

What exactly is causing the huge difference? I've never heard the 580's, but there is a very large difference between my HD600's and HD650's.

 

[vcoheda]

Quote:

Originally Posted by [AK]Zip /img/forum/go_quote.gif The HD580 and the HD600 drivers are the same. The drivers for the HD600 are just better matched. The HD650 used completely different drivers.

this has always been my understanding as well.

 

[yuheng]

i dont think 650 and 600 share a same driver, sound totally diff, but i do know 600 share the same driver with 580, but wat make senn. produce 650 by 580 driver....?