Hi. I have an iMac that is connected to an M Audio. Basically I'm using it to output sound from the computer to 2 harman/kardon soundsticks. The problem is that I dont want to mess up the speakers and stuff. There are multiple volume controls to consider. One on iTunes (I hear you're supposed to put the iPods volume at like 70 percent or something when you use it with something else... Sooooo I dk), and "Output" and "Mix" on the M Audio. Then the volume on the Harman/Kardon soundsticks. I currently have Mix in the middle, and Output at like 75. On iTunes about 70 percent... And on the speakers themselves I try not to turn it up ALL the way but mostly. Is there a simple solution to this so I can blast music without blowing up my speakers?