My current setup for my desk job is: Zune 30-Millet Max Hybrid (DIY)-Grado SR60. The SR60s were cutting it for a while, but i need closed cans to cancel out all the annoyances in the office setting. I would like to keep to price under $300, and they MUST be comfortable! I'm a basshead at...

I've been redesigning an A47 amp into a PCB for the past few months, and today i finally got done soldiering all my components. After looking over the connections, i fired it up. all i got was a hiss regardless of the switch position. I'm starting to think it could be in my TLE2426P tracing...