Now i have about 50 hours of burn in - sound gets worse... Totally dissapointed with this headphones
I do not have the 1500 anymore, I run a little charity and once in a while I donate left over phones for nursinghome, kindergardens, school some place in our local area..
So I have not listened to them in ½ a year or so, I just remember that they did not sound good at all, if I recall correct it sounded like a emty can, it had that "headphone" sound from my childhood phones.
I will rather stay clear of writing about stuff I do not have anymore, it is a bit like cheating..
I just remember I did not like them at all...
They are by far the best inear I have listened to, I have spent a fortune on IEMs over the last ten years, but these have taken me by surprice, I have not used other phones for nearly a month now, sad a set of Spiral ears is hard to sell used, I will never use them again...
They have not been punished enough (and survived) for me to know if they are buildt well enough for my use..
They are not from China or any of the other "normal" countries that makes audiogear..
Sadly they do not belong in a "cheap phones thread" they are expensive 400 $ or so, depending on your country´s laws, custums, VAT, shipping etc etc..
Before giving up on the headphones, try to pin point where the distortions are.
Then switching back to your comfortable headphones, try to hear if the distortion is present, (turning up the volume may be necessary) but only less pronounced, because maybe your old headphone is less detailed/analytical.
I'm suggesting this, because it happened to me. I found out that the distortions on the recording was present all along, it's just less pronounced in my old headphone.
2050 and pro 80 have absolutely identical drivers, and i hope my problem will gone away same as yours.
Maybe you're right, my old "on-ear" headphones was Soundmagic P30, which are pretty dark in their sound character. Also i have MEElectronics M6, and they're quite bright - but not as much, as 2050. So maybe now i hear all recording defects)