What would you recommend as an amp? And what would you say that the difference is in these headphones, from each other and the 990's?

So, I have a job right now where I have my own office and was pondering the thought of some new headphones and maybe a dac/amp. Currently, I have a pair of Beyerdynamic DT990's (600 ohm) paired with a Little Dot MKIII. I really enjoy the sound of this. I feel that the tubes help tame the sharp...

I found a pair of Koss K-6 at an antiques store and impulse bought them. Now I'm trying to refurbish them. There is a crackle when the cable is moved and they only work when the cable is in one particular position, so I will be either redoing the connections or the entire wire, but I digress...

So, I'm going to be modding my DT770's and I want to keep them single opening. What cable do you guys recommend?

I have my Little Dot which I bought for my Beyerdynamics DT990 600 ohm headphones. I have recently started doing some mixing for various church groups and wanted some DT770's (80 ohm) for that. Every now and then when I need to focus I pull out the DT770's at my desk to block out the world. I...

I like your idea of leaving an adapter hanging on my equipment, but my problem is that it isn't my equipment. I did think about the mini xlr, but I thought that would just get messy. Do you have any pictures?

Qui`     That's sad. Maybe somebody else has? Maybe I ghetto mod my own?

Question for everyone. I am planning on making a custom cable sometime and I am looking for a right angle 1/8" connector that is also threaded so I can put on a 1/4" adapter. Any thoughts?

Thanks for your help guys, I'll let you know what I do after I get my tax return.

What used hardware would you recommend I look for?

My budget is about $500. I listen to alternative rock, heavy metal, and rap. I am thinking that I want something neutral so I hear the music as it was recorded. 

I'm in an interesting situation. I am preparing to get my tax return and I am looking to possibly spend it on a sound setup for my computer. I have an older computer and it has a really bad audio out. However, I'm planning on upgrading to a new computer this summer, before college, and will be...