Anyone have any idea as to the quality of these?

i have a pair dont really like them that much. it sounds muddy. even after several weeks of burn in time. but judging by most people who wear this from amazon they are really happy with them.

so many negative reviews.

It's a crap shoot with these. I got two pair when they were running the B1G1 free offer a year ago. One pair is phenomenal, the other, just not. Like the above post, the bad pair is muddy and lacks any kind of bass response. It's night and day between the two pairs, even after several hours of burn-in. I am impressed at the first pair for 30 bucks though. They are lightweight, comfortable, and don't fall out of your ears.