Does anybody have problem with Wadia 781iSE connec

I just bought a WADIA cd player 781iSE and when I connect direct to the amplifier (as it says in the catalog) it make a noise as a Hum.I try different cables and with different periferical, as a turntable and only happen with the Wadia. I ask Wadia by mail and call by phone, but at this time the post selling service of the company is not working or is acting in slow motion