Before the comparison, I want to share a little back-story. After selling my Audio Technica SJ55's, I came across the KOSS PRO DJ100 on clearance at a small electronics store for $40. I was (and still) don't like spending too much on audio stuff since I kinda abuse them and I travel a good deal...

Everything was great  about my Sj55's as portables, but I wanted something on them I couldn't have; an inline remote and mic. Well, I've got both of them now AND removable cables, and here's how I got them...  First, things you're going to need. (NOTE: Everything I did here can be done...

As some of you may know, the SJ55's are a very nice set of headphones for the price. However, They have a couple of problems; head comfort, and clamping force. This mod is very quick and easy, and it fixed both problems for me. Good luck!   1. Most of us have a cheap ear pad lying around...

I got these TDK ST-550's at staples for 60 bucks, and they sounded good to begin with for that money,even at retail their prices is justified. But I wanted something that sounded more balanced and accurate. Here is what I did. (Sorry, I can't insert the pics, will fix if I can get "permissions"...