Some first facts on burn in on the koss house drivers pro4aat/aaat/MV1. All Headphones ar closed.
The titanium coating breaks on the moving edges of the diaphragm. It needs for this reaction some time or a lot of power for a fast break in.
A good driver shouldn't really break in or change his quality on dampening and other factors trough mechanical movement within a short time. It is a quality issue and the coating looks uneven, too.
One of the drivers housing broke in half on the the manufacturing molding edge, and now the air can move trough the driver.
Sorry, but i can not better describe this with my words.
Sorry Koss, but this is poor, i mean you should shame on your quality for a 149$ plastic painted headphone made in USA with an old pro4aaa headband design. Glued on Pads, resonating housing and plastic smell at this price range.
At all not all European states has your lifetime warranty and some costumers paying about 250$ for your Pro4 products. Quality workmanship outsourcing at the best. You are not Grado and this is not your tradition and role in the headphone industry. Your past overall quality was on top with German headphones. Even Sony has now better quality for a current studio phone.
If I need a broadcasting Headphone, I can get the beyerdynamic DT1xx series with boom mic.
Should i get the Dj100 for about 104$ in my country? Not really and i do not have the money for technical mass market bargain.Koss missed the concept on a good Dj Phone as a workhorse and its own statement on product placement and marketing.
I need 35dB broadband Isolation, perfect acoustic dampening and with rhythm signature, with some more improvements for a good overall closed headphone. Sennheiser HD-25 and we can talk now about good and productive headphone, Sound is not all.
Edited by Neighbour - 11/28/11 at 12:10am