LOGITECH z640 probs and SBlive (u may win a gmail to help me!)

A strange noise comes from my speakers when i put em loud... i dont have waranty here in brazil since my dad brought them for me from the states so i want to know why cant i put it loud.... i mean on some softs it works louder the ones who support eax 2 but not on windows plz help me

i have an sblive 5.1

plz post solutions thx in advance....

THE POST THAT FIXES MY PROBLEMS GET A FREE GMAIL ACC

I find I get a humming kind of sound when the 'Wave' under volume control is set too high. I usually keep mine set to about ¼ the way up. Then I can move the regular 'Volume' bar and my speakers volume nob to where ever I need it to be. Hope this helps.

I think I have the same speakers and the problem. I fixed it just the way sir lancelot said. There seems to be at least 3 volume controls. On the speakers, a general volume control in windows, a volume control for the sound card and then another volume control in the application itself. Ok, 4 volume controls. Turn them all down to 1/4 and the speakers themselves at 1/8. Then use the volume in your application to see if you can get a good volume without the hum. Then if you want it a little louder turn up the speakers to 1/4.