BillsonChang007
Headphoneus Supremus
I think all headphones distort at high volumes. HD 439's harmonic distortion is at 0.1% so could be. You can try send it back in for the test 

Are you happy with them?
the bass might not impactful like on basshead cans (M80)
am i correct?
I dont think that the M80 form V-moda are a bassheads cans, there are a little emphazise in the low frequencies but nothing exaggerated. I Will have the m80 in 1 week, if you want i will tell you my impressions and a comparison against the HD439.
With the hd439 im very happy with those, because i like the warm cans and for my ears those are balanced. Also the comfort for me is top notch.
Hi,
Thanks for the review. I was seriously considering these after I couldn't fix the cable on my HD448 (if anyone has some suggestions for fixing cables, I'm all ears), but after trying them in the store today, I was quite disappointed. The sound was noticeably muffled, almost like toy headphones, and the distinction was even greater in comparison to the HD558 and Momentum. Although the bass of the HD 439 was much more distinct and prominent compared to the other two mentioned, its clarity was much worse. Because of the cord issues with my HD448 I thought that the HD439 with its removable cords was the perfect solution, but honestly after today's listen I'd rather take a risk with headphones that have cords attached if it means having to compromising sound. I'm looking into HD449 now. I heard the clarity is comparable to that in the HD448, but has a better bass. Can anyone confirm this? Thanks a lot.
yes, want to hear that
usually sennheiser had warm sound signature
Hi All,
I have only just bought a pair of these and so my review below should be viewd in the light that they won't have burnt in yet.
They are VERY comfy and really easy to have on your head in the office all day. However they aren't the best sound quality - having a slightly muffled sound out of the box. But they are the most balanced in the Senheisser HD4xx range.
The next headphone up, the HD449 has a MUCH better soundstage and MUCH more clarity right out of the box. However, they have a slightly less comfy ear pads (pleather?) and low end bass which is a little too grunty for my taste (although would be good if you like 'Beats' type headphones).
I bought these for the office, for use with a Rega Ear headphone amp and Pure I-20 dac for use with my IpodTouch and I am pretty happy but my perfect office headphone would be the HD449 with quieter bass and velour ear pads. THEY would be AMAZING!
Compromise is ok sometimes
PS To reply to SCOP's post above, a headphone amp makes a HUGE HUGE difference. Really truly amazing difference. I thought that the DAC in the IpodTouch was naff, but it turns out that its the amp instead! Please note though that this is a general comment based on experience with all sorts of headphones on my DAC/Ipod/Amp combo. The headphone amp is being repaired at the mo, so I will be able to give you a more HD439 centric review soon.