I am using Windows 8. When I plug my headphones into my desktop's headphones jack, my headphones at maximum volume play at a decent decibel. However, when I plug my headphones into the headphone jack on my Klipsch speakers, at 1/8 maximum volume on the volume adjuster on my speakers, my headphones are LOUD. How do I get my headphones to play at their maximum level when they are plugged directly into my desktop? Thank you for your time!