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Ultimate Ears UE 900 Discussion and Impressions Thread - Page 238

post #3556 of 3564
Quote:
Hi guys i just purchased these after selling my sony ex1000 and i have a set from the older batches. Serial 1242

Anyway the first thing that strikes me is the distortion at higher volumes, im not one to use extremely high volume but i sure do like to tests earphones out and i expect a quad armature set of headphones to be handling high volume with ease but the music turns to **** at high volume its really shocking, besides this issue i am having no problems at all with the iems the sound is good, lack of sub bass is noticeable but isnt an issue and mids and highs perform admirably.

I am simply using an iphone 5s and fiio e5 to boost volume. Have tones down my headphone collection massively since having kids and getting married but the sony ex1000 were starting to show signs of wear with paint chipping and cables that seem to be non existent in the real world so cant be replaced. Hence they were sold and i got these.

But this distortion guys, is it just me? I like to know the headphones are capable at any volume but just knowing they lose control when played loud is frustrating.

 

The UE900 is a 30 ohm load and the Fiio e5 is rated at 100mW into a 32 ohm load (and .009% distortion at just 10mW).  Distortion will likely rise exponentially as power increases.

 

If you're diming the output, it's very likely at least some of the distortion you're hearing is from the amp. 


Edited by Sodacose - 7/25/14 at 6:33am
post #3557 of 3564
Hi thanks for the reply, it is true the distortion happens while using the amp at high volumes, and its very likely i guess that the balanced armatures used are simply putting forward the distortion as ofcourse armatures are known for highlighting weaknesses in the output from a device, i guess being 4 armatures in each earpiece simply does not help if distortion is introduced as this is amplified by the armatures, its just the first set of headphones that have really struggled when using the fiio at very high volume. Thanks for your help
post #3558 of 3564
Quote:
Originally Posted by jinx20001 View Post

Hi, its almost certainly the 900 original. I have not owned them long enough to come across any build issues yet and overall the fit and finish seems ok. Time will tell as always. As i say the only real issue for me as of now is the distortion at high volumes. Granted it really does have to be high volume i mean unbearably loud but it just suprises me they struggle at all with the power output im giving them. My music quality probably does not help but its all easily 320kbps and up aswell as lossless but i cant imagine poor quality recordings get poorer as volume is increased its just poor full stop quiet or loud so dont think its that, just seems the headphones have a limitation i have not experienced before its just so audible for an expensive set like these
I have no issues with distortion at all even at quite uncomfortable listening levels. Personally I would be reluctant to push them so hard that they distort as this is probably going to damage your iems. They are very sensitive and are quite happy unamplified. It seems odd to put them through a test that they were never designed for as the sort of output levels you seem to be talking about would very quickly damage your hearing with in ears. Be careful with your hearing fella. Happy listening
post #3559 of 3564
Hi you are absolutely right the levels do have to be extremely high however even tho i dont plan on listening at such levels i was suprised at the sheer amount of distortion there was, keep in mind i am only using the fiio e5 and iphone 5s, i do think it has a lot to do with the signal being unclean i mean what good is something being extremely loud if its not a great signal, its just the ue900 displayed this unlike any iem before, maybe this is testament to just how sensitive they are and they are just bringing all my crap music quality forward.

The more i listen at comfortable levels the more i think they are showing signs of true quality, the highs are a godsend after the pearcing highs of my sony ex1000. The bass is still a bit shallower than i would like from a quad armature but again i think this is just being spoiled by the impact of those big dynamic drivers, and the fit is excellent very comfortable, cable is reasonable however there is no chin slider on the blue cable is this normal there is only the shirt clip and chin slider is on the black cable.
post #3560 of 3564
Quote:
Originally Posted by jinx20001 View Post

Hi thanks for the reply, it is true the distortion happens while using the amp at high volumes, and its very likely i guess that the balanced armatures used are simply putting forward the distortion as ofcourse armatures are known for highlighting weaknesses in the output from a device, i guess being 4 armatures in each earpiece simply does not help if distortion is introduced as this is amplified by the armatures, its just the first set of headphones that have really struggled when using the fiio at very high volume. Thanks for your help

 

Of course!  The UE900 are a very low load and very high sensitivity, so they're going to be very demanding of amplification.  It's a bit counter-intuitive, but higher ohms are actually an easier load for amplifiers (in terms of control and distortion, they do usually require more power to reach the same output).

 

Have you tried UE's straight from your source?   

post #3561 of 3564
Yeh straight from source needless to say they dont audibly distort, they do go reasonably loud with the 5s aswell
post #3562 of 3564
Hmm. I just got confirmed that I'll get a replacement pair UE900s from Logitech. I'm in Eu. Wonder if it's an actual 900s or just repackaged 900.
post #3563 of 3564
Quote:
Originally Posted by MoonYeol View Post

Hmm. I just got confirmed that I'll get a replacement pair UE900s from Logitech. I'm in Eu. Wonder if it's an actual 900s or just repackaged 900.

It will be indeed interesting as all Ultimate Ears websites show the 900s as Sold Out. Strange. 

post #3564 of 3564
I had a conversation with logitech about possibly getting mine replaced even tho at the moment theres nothing wrong with them i asked them if they would change them considering the known manufacturing issues with my model and as i suspected they said they cant replace it unless there is an actual issue which ofcourse is to be expected and they were very nice to me about it. Its annoying but i think im worrying a bit too much theres a good chance i may never have an issue but nice to know logitech are quick and helpful when responding.
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