I'm sorry I didn't explain myself correctly.

I'm not trying to match the actual bass frequencies, I'm just trying to hear the bass player. I need separation more than matching bass tones. On my computer speakers, there are many songs where no clear bass comes through the 2.5" main speakers, and the same with the sub, except for really low frequencies. The same song on headphones or my stereo with the M60s, the bass line is quite clear.

This issue does not happen with every song of course, I'm just hoping to improve the situation.