Static from speakers with hard drive activity and moving the mouse

I just put a new system together with the specs below and I'm having an issue where the speakers will give me a high pitch static noise when I move the mouse or there is hard drive activity even with Windows sound muted. I've tried plugging the mouse in the front and using the audio out on my monitor, but still had the static. I can turn the knob on the back of each of the speakers down until the static is low enough not to be heard and adjust my windows volume to compensate, but on my other build I could leave the speakers at max with no issues.
GIGABYTE z97n-wifi
4790K 16GB CorsairPlatinum
AX 760i PSU
EVGA GTX 980 FTW
850 EVO 1TB SSD
I tried with M-AUDIO BX5 D2 and JBL LSR305 speakers. I bought a USB sound card, but that didn't resolve the issue. Anyone have any ideas?

Have you tried a different power outlet for the speakers?

ATMINSIDE said:

Have you tried a different power outlet for the speakers?

Click to expand...

Yep. I gave that a shot, but didn't have any luck.

Are you using any other equipment besides the speakers?
Amp? DAC? Etc?

You've tried both front and rear audio ports on the computer?

ATMINSIDE said:

Are you using any other equipment besides the speakers?
Amp? DAC? Etc?

You've tried both front and rear audio ports on the computer?

Click to expand...

No amp or DC. I did try both rear and front with no change.

Do you have static issues with headphones?

no, but my headphones are pretty crappy

I'm thinking the issue is on the speaker/power side and not the signal side, personally.

Get a digital amplifier.

NiHaoMike said:

Get a digital amplifier.

Click to expand...

my speakers are already powered. Could an amp damage them? Could you offer any recommendations?

Bits are bits crew wont guide you so well here.

Galvanic isolation, EMF and RFI advice you should seek out elsewhere.

if you can drop in a optical cable then that may be a cheap way to cure 80% of the noise issue. silly money cures the rest

Solution found!

I bought a hum eliminator/ ground loop isolator and that resolved the issue completely. The one I bought was the BEHRINGER MICROHD HD400 and it was only $25 on amazon.

http://www.amazon.com/Behringer-HD400-BEHRINGER-MICROHD/dp/B000KUD2G4

Brilliant. I would have never thought of that as it reminds me of car stereo installs. I'm guessing you don't use a UPS either.