My old headphones that I used at work were starting to show their age. I started doing some researching online to see what were some recommended low-cost headphones.  I kept seeing the name Superlux come up but I had never heard of this brand before.  After doing some reading about the Superlux lineup, I decided I would try out the 681 Evo's since they address some of the issues the older versions had.   When I received the headphones, the packaging looked pretty nice for such inexpensive headphones.  Then I opened the box and was very impressed...