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new member, just got the pre-2005 dt990 pros and already need some help

post #1 of 14
Thread Starter 
yea i've been browsing through this forum for the past year and you guys convinced me to get beyers without ever talking to me

anyways, i've always been keen on hearing good quality sound and have some decent speaker setups and headphones already like the senn hd497. i've burned in the beyers for about 30 hours now and they've impressed me. (i had pretty high expectations) and these met them.

AND now the problem... well, before burning in the phones my brother had a chance to try them out (wasn't a good idea on my part to allow that), because he listens to music at pretty high volumes(still listenable ofcourse but loud for me as i'm used to listening at relatively low volumes). so ofcourse, he bumped up the volume to his "optimal" level and he said he heard slight popping noises in the right driver in bass-heavy tracks at high volumes. this scared me as the phones weren't burned in yet so i thought maybe that was a sign of damage. i quickly put them on and, at the time.. when i listened to them at volumes i usually listen at, i didn't hear any of these distortions...i thought maybe the high volume distortion problem would go away after burn in, and it was nothing to be concerned about. but then...i tried them at high volumes today(after 30h burn-in), and, much to my dismay, on bass heavy tracks i can hear the pops in the right driver at high volumes.

so my question is...is it damaged? i don't hear this on the left ear piece. any remedies to my problem?

some background info: my source is an audigy 4 pro sound card and an amplified headphone out from my logitech z560 speakers...i also have the govibe 5's, however, the difference between the z560 hp out and the gv5 is so tiny it's almost not noticeable...and maybe w.e differences im noting are just my mind playing tricks. actually the biggest difference i noticed was the bass actually went DOWN. no it did not get tighter, deeper, no the soundstage did not expand. it did however give me more volume on my ipod nano (but i dont use that because of the ipod's terrible sq imo)

any help would be appreciated...i also don't know how to contact beyerdynamic to see if maybe i can use the warranty for this.

you guys are the experts, i knew for this matter there was only one place to turn to.

also...if it helps, i live in toronto, canada, so i can't contact the beyer office in germany.

thx in advance
post #2 of 14
Bummer...first I would try the cans in another setup to eliminate the source and amp. Do you have a reciever or amp with a good output and headphone jack? If you still have the "pop" it probably is the driver, I would contact the seller (if they are new and from a dealer) to see what their return policy is, you may be able to return them as "new defective". I also have dt990 pro's and love them. Hope everything turns out OK for you.
post #3 of 14
dont know if this helps.... but check ur soundcards control panel and set the volume levels to default.

this solved the popping problem i had with my a2zs and my a4.
post #4 of 14
Sounds like a classic case of amp clipping to me, probably the fault of the Logitech speaker's headphone out, which is a pretty definite weak link here.

and ps: no, playing these loudly even somewhat above the range that a normal person could stand will almos certainly not damage the headphones.
post #5 of 14
I agree with facelvega.

At high volumes his ears would have damaged long before the headphones.
post #6 of 14
Thread Starter 
i'll try it on a different source (my receiver output). you guys are pretty convincing but i still have my doubts. this is because it's only the right driver and it only happens at high volumes on heavy bass tracks.

but sure i'll go ahead and try them out on different sources before i say anything else. thanks
post #7 of 14
Thread Starter 
madman, my volume levels in the control panel are all at 50%. i put the bass up to 85% (hehe) for rap songs. but for everything else (i listen to all types of music), i keep it at 70/70 % both, and i use the equalizer to bump down the 8khz+ frequences a bit because they were too harsh for my ears. also the low bass i increased as well, < 80hz. i think with this setup it's really nice. highs are crisp but not shrill, bass is tight but deep and there's a speaker-like amount of it. i was beginning to believe these things could handle any amount of bass i feed them until the pops appeared.
post #8 of 14
Thread Starter 
ok i tried it with my receiver and i didn't hear the pops. but before we get ahead of ourselves, that's because the receiver couldn't pump out as much bass as my sound card(as i have it eq'd seriously). so, i decided to take out the z560s from the equation, and connect the govibes directly to my audigy 4 pro output. and to my delight, no popping noises. i had to put the output volume from the a4's down to 35% and control the volume from my gv5 though, leading me to believe it's actually my sound card whose output isn't sufficient(when equalized to give that much bass) to run these phones, even if it is through the z560 amped phone out.

so thanks for all of your posts they all helped. very much appreciated, i posted this thread at around 3 am last night, and i couldn't believe the responses i got in less that 10 hrs after. great forum, great members.

one last question, if anything ever does go wrong(with my brother here and other friends that come over frequently it's a very good possibility), how do i contact beyer? it says i have a 2 yr warranty against defects. that would come in handy. i live in canada and i tried emailing them through their website, but i didn't get a response. (not sure where that email went, germany or usa or britain)

-shahrose
post #9 of 14
Quote:
Originally Posted by Shahrose View Post
one last question, if anything ever does go wrong(with my brother here and other friends that come over frequently it's a very good possibility), how do i contact beyer? it says i have a 2 yr warranty against defects. that would come in handy. i live in canada and i tried emailing them through their website, but i didn't get a response. (not sure where that email went, germany or usa or britain)

-shahrose
Here's how you contact them in the U.S.: post.

Good luck, and glad you didn't run into a permanent problem=]
post #10 of 14
Thread Starter 
thanks
post #11 of 14
Quote:
Originally Posted by Shahrose View Post
ok i tried it with my receiver and i didn't hear the pops. but before we get ahead of ourselves, that's because the receiver couldn't pump out as much bass as my sound card(as i have it eq'd seriously). so, i decided to take out the z560s from the equation, and connect the govibes directly to my audigy 4 pro output. and to my delight, no popping noises. i had to put the output volume from the a4's down to 35% and control the volume from my gv5 though, leading me to believe it's actually my sound card whose output isn't sufficient(when equalized to give that much bass) to run these phones, even if it is through the z560 amped phone out.

so thanks for all of your posts they all helped. very much appreciated, i posted this thread at around 3 am last night, and i couldn't believe the responses i got in less that 10 hrs after. great forum, great members.

one last question, if anything ever does go wrong(with my brother here and other friends that come over frequently it's a very good possibility), how do i contact beyer? it says i have a 2 yr warranty against defects. that would come in handy. i live in canada and i tried emailing them through their website, but i didn't get a response. (not sure where that email went, germany or usa or britain)

-shahrose
I bet the cause of the distortion is that you're EQing the bass as you indicated before. Try the computer setup WITHOUT EQ. The DT990's don;t need EQ.
post #12 of 14
This is a good example, that quality headphones need a quality amp. Sound cards & ipods just don't cut it with higher end headphones.

- augustwest
post #13 of 14
they obviously pop because they are receiving a distorted signal due to ur excessive eqing....

getting a good source (high bitrate mp3s or lossless) and a decent soundcard/(with a decent headphone out) will really boost the overall sound...yes this means more bass in just about every way...without the distortion.
post #14 of 14
Thread Starter 
yea i'm sure my sound card is the weak link. i had a hunch that i was getting a distorted signal from its output.

as for not eq'ing...heh no way. they sound almost exactly like my nextech $70 headphones without the eq (those are actually better hp's than my hd497, surprising but true).

but with eq the 990s come alive. i realized any good eq will make any headphone sound good provided they can handle the exaggerated frequency response. this is what i like about the beyers, they can handle exaggerated frequencies better than any of my other phones(which is expected as they're in a different class altogether).
also chase, most of my mp3s are 320kbps, or variable bitrate up to 320. i also have some .flac tracks. some mp3s even at 320kbps don't sound good and u can really tell with good headphones, and this is usually because they weren't recorded well.

also a good point was brought up, i think i should replace my sound card. i need something more headphone friendly. any suggestions for a better quality soundcard with a better headphone out?
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Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › new member, just got the pre-2005 dt990 pros and already need some help