Speakers crackling?

[Type_R]

My setup:

AMD X2 4800+
Asus A8n-SLI
Creative SB Audigy 2 ZS Platinum pro
Logitech Z5500 speakers
Crucial ballistix PC4000 2x512mb
ATi X1900XT
Raptors x2 in RAID 0

Since I swapped out my 3500+ to the 4800+ I have noticed a very fine crackling coming from the speakers when playing music. This affects both 6 ch and optical.

Any ideas what it could be and how to fix it?

 

[Type_R]

Thanks for the response.

Figured it out...its the belkin PCI Pre-N card which is causing interference with the SB card directly. When the wireless is off there are no problems. Will have to relocate the belkin card I think!