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Sennheiser HD25-1 need repair? Bass seems to be gone?

post #1 of 13
Thread Starter 

Any help or advice very welcome, my Sennheiser HD25-1 seem to been seriously lacking in the bottom end.  Iv compared them with others of the same model and its not just me.  Not sure what to do?  Try rejigging the cables abit to no avail.  Iv had them for a few years, and dont really blast the volume at all.  Is this a common problem, and what could one to do to fix it?  Or is it even fixable?

Thanks

post #2 of 13

Can you give a better description then: "Bass is gone. wat do?"

post #3 of 13
We do not haveenough information to answer your question.
When u say they have no bass, do you mean since u bought them, or that they used to have bass and now have none?
And when u say"compared to other models" do youmean other hd25s, or other kinds of headphones?
I know this is your first post, so i am taking it easy on you.
Give us more to go on or else no one can help you here.
wink.gif
post #4 of 13
perhaps you removed the headphone cable and then plugged it back in out of phase?
post #5 of 13
Thread Starter 

  Yes they used to sound fine, but iv noticed the bottom end seems to be heavily attenuated (below 150Hz) Iv compared them with a friends identical model and same sound source, and there is a definite loss in sound in my ones.

post #6 of 13
Quote:
Originally Posted by dauwd View Post

  Yes they used to sound fine, but iv noticed the bottom end seems to be heavily attenuated (below 150Hz) Iv compared them with a friends identical model and same sound source, and there is a definite loss in sound in my ones.



Have you plugged them in fully?

Have you placed them on your head?

 

I know, stupid questions.

 

Really?

 

Test your plugs

Sources

volume levels

Eq

Songs

 

Before you start to freak out.

post #7 of 13

No offence botbyte but you don't sound like someone who has a Masters in Creative Writing.

 

I find your style in trying to help others out to be very.. confusing or even misleading at times.

 

 

 

Dawud if you tested both headphones on the same source and on the same song then I suspect

 

something's really broken somewhere in your HD25s. I'm sure you can get it fixed at a Sennheiser

 

Service Centre, even if it's out of warranty. Of course you'll have to pay for handling/admin/etc

 

charges but it beats DIYing your own solution which will just fall apart a couple of months down 

 

the road. 

post #8 of 13
Thread Starter 

Thats cool, iv had this problem for a few months, iv just tried living with it.  Iv checked the manual for the correct orientation of the speaker plugs, checked all the obvious things you suggested but there still seems to be the problem.  Theres no distortion, which is odd because if something was blown i would imagine distortion.

post #9 of 13
Thread Starter 

Sounds like the best plan really.  Thanks for your help.

post #10 of 13

Oh I don't know if this will work but try getting a sinegen application. Generate a tone of say 60 Hz, slowly go up to 100 Hz. Compare both HD25s and see if there is any difference. 

 

Quote:
Originally Posted by dauwd View Post

Thats cool, iv had this problem for a few months, iv just tried living with it.  Iv checked the manual for the correct orientation of the speaker plugs, checked all the obvious things you suggested but there still seems to be the problem.  Theres no distortion, which is odd because if something was blown i would imagine distortion.



 

post #11 of 13
Quote:
Originally Posted by koolkat View Post

No offence botbyte but you don't sound like someone who has a Masters in Creative Writing.


Do you even know what Creative Writing is?

 

I only did the Masters in Creative writing because I couldn't finish my Publishing degree. My college ran short and cut the program. I also have published a good running book series. I don't need someone to tell me that I "don't sound like" anything. Writing is made to simple, not complex.

 

 

OP, I'm just kinda not understanding the problem

 

To have a frequency to just drop off like that, is sorta odd. The lower end doesn't have any crackle? Just drops dead in volume.

 

Yeah Sennheiser would fix it, but it might also be better to just get a new one. The shipping/rate/repair might be a little too much to receive a used headphone back. Senn probably will swap drivers.

 

But I just find it odd that's there is no crackle. When the lower end is messed up, there usually is a crackle telling you it's distorted. You would have noticed this.

post #12 of 13
Quote:
Originally Posted by dauwd View Post

Thats cool, iv had this problem for a few months, iv just tried living with it.  Iv checked the manual for the correct orientation of the speaker plugs, checked all the obvious things you suggested but there still seems to be the problem.  Theres no distortion, which is odd because if something was blown i would imagine distortion.

 

have you tried your headphones with your friend's cable? might worth a try.
 

 

post #13 of 13

I would expect someone with a Masters (any Masters really) to be able to converse in proper english.

 

Surely you value your image, especially if you have published a couple of good books. 

 

 

 

I've seen you give some pretty bad and/or confusing advice to some people.

 

Quoted from post #2 and #6

 

"Have you placed them on your head?"

 

"Bass is gone. wat do"

 

 

What..... ಠ_ಠ

 

 

I've seen you give some good advice to newcomers, so keep doing that.

 

Stop giving advice like the comment you typed on top. 

 

 

 

Quote:
Originally Posted by BotByte View Post




Do you even know what Creative Writing is?

 

I only did the Masters in Creative writing because I couldn't finish my Publishing degree. My college ran short and cut the program. I also have published a good running book series. I don't need someone to tell me that I "don't sound like" anything. Writing is made to simple, not complex.

 

 

OP, I'm just kinda not understanding the problem

 

To have a frequency to just drop off like that, is sorta odd. The lower end doesn't have any crackle? Just drops dead in volume.

 

Yeah Sennheiser would fix it, but it might also be better to just get a new one. The shipping/rate/repair might be a little too much to receive a used headphone back. Senn probably will swap drivers.

 

But I just find it odd that's there is no crackle. When the lower end is messed up, there usually is a crackle telling you it's distorted. You would have noticed this.


 

 

 

Like I said, get a signal gen generate some tones, see if both pairs of headphones produce the same loudness.

 

If you find that your headphones struggle to produce the signal at say 60 Hz, while your buddy's HD25 can produce the 60 Hz tone just fine,

 

you better send them in for repair. Get the old parts replaced, you pay a small fee, you get to keep your HD25s.

 

 

 

Mess around with your headphones, get a temporary fix, few months down the road, your headphones die out again.

 

 

 

Try this http://www.sennheiserusa.com/service/ServiceRequest_CE.pdf

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