The Furman product for "DC hum elimination" -- http://www.furmansound.com/pdf/manuals/IT-1210_manual.pdf#search=%22isolation%20transformer%22

I have had good experience with the products from TrippLite as well, though the styling is definately "hide it behind something else".... http://www.amazon.com/Tripp-Lite-IS1000-Isolation-Transformer/dp/B00006HPFI/ref=pd_cp_e_3


Mixed reviews on this puppy -- low bid is definetely worth a try. It has worked for others...
http://www.ebay.com/itm/ps-audio-upc-200...=item20cef42e66

http://ubb.outlawaudio.com/ubbthreads/ub...ite_id=1#import