I just bought a Toshiba Laptop and there was no bass coming through on my external speakers. I'm on Windows 8 and found the solution on another forum. Pull up DTS Sound by using your search option for you PC. Click on Bass Boost and then click Advanced. There you can adjust the bass, voice and treble. Sooooo simple!! Sounds great now. You can also adjust the sound by going to Setting, Control Panel, Hardware / Sound and Realtek HD Audio Manager (which is what came with my PC). There you can play around with the Sound Affects that you are looking for. These two things should solve your issue if you haven't solved it already. Again, these two things are relatively easy to find and adjust once you know what you are looking for. Good Luck!