Sennheiser HD 280PRO Headphones Help

I have recently purchased and received Sennheiser HD 280PRO Headphones.

When plug them into my HP Dv7t laptop, and I hear a constant static sound. The static sound isn't very loud, but it isn't exactly low either.

I plugged them into my Brother's Dell laptop, no static. I then plugged them into my Fathers really old laptop, no static (unless I raise the volume on his computer to max, but that's normal). Plug them into my desktop's sound card, no static. My Zune also had no static. I did get static when I plugged them into my speakers, but those have some issues anyway.

I've tried doing a lot to the HP Dv7t, setting sound volume, disabling integrated microphone, enabling and disabling enhancements, messing with the IDT sound control panel, unplugging and plugging in the AC adapter, and even moving around the house. Nothing worked.

I went into the BIOS to see if there were any sound settings that I could alter in there, nope. Even in the BIOS I could still hear the static noise.

The only thing that seemed to do anything is a network button on the Dv7t that disables and enables wireless. When disabling it, the static got a bit better, and of course, enabling it made it worse.

I've tried running it through several other stereo connection cables trying to see if they did anything at all, you can guess the result.

I routed my laptops sound into my desktops sound card then put my desktops sound card's output to go into my headphones and I couldn't hear any static.

I really don't know what to do, do you guys think the laptop doesn't give enough power to the headphones, or is there ground looping? Bad quality sound card? Would a stereo filter fix it? Any help at all would be great.

Thank you for your time.

 

I know my dv9700t and my uncles dv6500t both have a whine or static like sond when you plug in headphones/earbuds. im guessing its the sound card but i not sure. i guess they carried the problem over to the new line to.

 

Well I don't get any static on my cheaper Sony pair, or my brother's Sony headphones.

 

Thats what we call interference. Hence the reason everyone says to get a sound card that sits outside of your computer. According to me, static is pretty much a given with on board sound cards in laptops. If you have a laptop where the headphone jack is above the hard drive then you can hear your hard drive moving via the headphones. So, to solve your problems, get a USB sound card, but I advise against creative.

 

this problem exists on my d900k, but I fixed the problem.
Their is an interference issue between the soundcard and the frequency which the internal subwoofer make.
I covered the soundchip with hot glue, and the interference/static is gone.
I also have the Hd280Pro silver edition, and I know exactly what you are talking about.

Chances are if the problem exists with other headphones than its an internal interference problem. This can be fixed with hot glue.

SInce you mentioned it doesnt happen on your cheap sony headphones, either your hd280's are interfereing with your laptop, or your hd 280's are defective.

K-TRON

 

If the headphones were defective then it would do it with other sources too. Different headphones have different impedances, which will be affected in different ways by the interference.

 

Get Fiio E3 Amp..

i got one too.

Laptop soundcard is most underpowered source of audio signal.. u gotta amp it.

that Fiio Amp costs not even $10.

 

Amplified noise is exactly that.

OP: Have you tried a simple Ferrite bead choke? There is a reason manufacturers put them on pretty much any signal cable known to man.

http://en.wikipedia.org/wiki/Ferrite_bead

 

Noise only if the Soundcard has serious interference from the Onboard hardwares.

Otherwise all it ll do is give a Boost .

Laptop with onboard soundcard is the last place to hear music.

i would rather go for mobile phone

 

Thank you for all your replies.

I may buy the Fiio E3 Amp, since it seems like the cheapest and easiest solution, if it works.

I have tried a ferret, but it didn't do anything noticeable.

However as Syndrome said, the sound card may be getting interference from the hard drive. Is there anything I can do to confirm this?

EDIT:

Do you guys think this would fix it: http://cgi.ebay.com/NOISE-FILTER-MP3-AUDIO-CAR-STEREO-CORD-FOR-IPOD-ZUNE_W0QQitemZ370091829265QQcmdZViewItem?hash=item370091829265&_trkparms=72%3A1205|39%3A1|66%3A2|65%3A12|240%3A1318&_trksid=p3286.c0.m14

Thanks again.

 

What u can do is buy an External USB Soundcard.... Creative has started making Sub $20 USB soundcards named as Sound Blaster Play!


so u can buy that USB soundcard + Fiio E3 Amp ..

a great combo under for a quick impressive solution.

The idea is to get the sound source of out laptop.

so let me know ...and also let me know your budget so i can advice something better