I researched both headphones. Normally PortaPro should be more expensive. But things change for me after tax and shipping fee. PortaPro $43 PortaPro 3.0, Black version $50 ( Good looks but cable quality has reduced? ) Ksc75 $50 The Kph30i is pretty good too. But these are $65 for me Also the...

The project was initially inspired when I ran across the StratoKOSSter thread by accident while troubleshooting a problem with my Sony MDR V6. I read the thread and was pretty encouraged by the results claimed. Since I am somewhat handy I thought I would come up with my own design. Here is a...