What do you guys think of Sony Headphones? I can get the Sony MDR XB950B1 for around $30 on ebay. I think it would be nice to have wireless headphones. All the reviews for the XB950 say they have plenty of bass. I'm just worried that I will be disappointed coming from the Superlux HD668b. I just can't take the clamp force of the Superlux even after trying to fix the clamp force. From what I've read these Sonys are supposed to be comfortable.