I've had my pair of 600ohm DT990s for about a week. They've had a bit over 100hrs burning in and most critical listening was done in the last two days. I'm powering them off of a Woo Audio 3+ that is fed by a DAC1 USB from my PC. I'm finding them somewhat fatiguing due to what I think...

Hello, I recently got a Keces 151 MK2 that I use at my office. It is connected to my Dell T7400 desktop via USB and then to my Woo Audio 3+ amp. This setup is working fine and I have no complaints..... so I decided to get a Keces 151 for my Home PC as well, which is an identical Dell T7400...