I'm currently driving my HD650s out of the onboard soundcard and have only enough money to purchase either a USB DAC or a Little Dot MKIII. Which would you guys recommend buying first?

I'm currently running my HD650s unamped out of my on-board soundcard and I'm looking into getting a DAC. What I'm looking for is instrument separation and tightening up the bass with USB input, anyone have any ideas? An included headamp would be a bonus. I have a budget of £180.

After removing the earcup to get rid of some hair from the drivers I found that I cannot get the earcup to clip back into place, it stays there fine but when I remove the headphones from my head it falls off, anyone have any advice?

Ok now, my Senn HD555s look like this, no matter how much I stroke them out they always revert to this mess I'll be receiving my HD650s soon and was wondering if I wrapped duct tape around the cord several times incrementally with about an inch gap would it stiffen the cord any? Will it...

I'm looking to lessen the sibilance with the 990 Pro, which should I purchase bearing in mind that I'll be paying roughly the same for either, Little Dot MK V or the Meier Arietta?

I'm thinking of buying either the DT-990 or the DT-770, although I hear the 770 has problems with it's bass and the 990 with sibilance; with both of those problems 'solved' through the use of an amp, which would be the best choice for IDM, Dubstep, Rock and Classical? Beyerdynamic DT770 PRO...