Icemat Siberia - Once I got to the testing part I plugged them into my z560 volume control, though it increased my bass, which is a side effect of the logitech speakers. And it seems the problem doesn't go away using headphones plugged in the volume control. I then plugged the headphones into the back of my motherboard and used onboard sound. Now I know onboard sound doesn't match a high-end audio system but it sure perform great enough for me to enjoy my games. Bass levels were normal again and the sound was clear and seems incredible for the price. Games were no problem for the Icemat Siberia, and neither were mp3's. There's no real way to give you an idea of how well these headphones perform but I can tell you that it performs great for the price you pay. I'd rather see a de-attachable microphone to the side of the headphones instead of a clip on microphone. I was not really impressed by the microphone, you'll either need to speak louder for the microphone to really record anything or have it really near your mouth.