Controlling which Frequenzy Each Part Of Sound system Controls?

Hi. My very cheapo Logitech Z523 Speakers is sure powerful and very good for its prize. But the bass has to be at max to do its job or atleast cover the speakers effort to output Bassnotes..
but i can only have it at 50% becouse otherwise my family gets grumpy to say the least :P
But when i lower the bass some Higher bass notes gets picked up and get outputted by the speakers and the bass! Wich ends up with a Good bass feel and the annoying sound of bad speakers trying to output good bass -.-.
So yeah it is very annoying to say the least and i wonder if there is any software that can control how the speakers act like Bass takes care of tones from 0Hz to 200/500Hz or whatever is the bass tones.. Im not really an extreme audiogeek but i love audio!
And say that the loudspeakers/speakers take care for 500Hz - 20Khz?
Or is this something the system has built in and cannot get changed and i was unfortunate enough that logitech messed it up?

The actual power amplification and controlling of what frequencies go where is controlled by the electronics located in the bass speaker. You could install an Equalizer but you will still be constrained by the speaker system electronics.

I have a recording studio (using Sonar X3) and know what you want to do. You would need a much better system to have the full control over the frequency spectrum.

fireberd said:

The actual power amplification and controlling of what frequencies go where is controlled by the electronics located in the bass speaker. You could install an Equalizer but you will still be constrained by the speaker system electronics.

I have a recording studio (using Sonar X3) and know what you want to do. You would need a much better system to have the full control over the frequency spectrum.

it always ends up beeing expensive..
Ah well its good as it is im just trying to sqeeze every last bit out of it! :P