Can't increase volume!


Using Mac OSX

Tried everything, can't seem to increase the volume...

Checked in System Preferences... Sound... mute unchecked... for output...
checked volume bar... power on external speakers... slid all volume bar levels to max... but my volume is still and always faint....

Any other ideas?
can be that the speakers can just take it up to a serten db. Then ofcrouse the music can be done with a low rate in db and that too makes the music faint. if possble connect ur stereo to it that will get more push.