Thanks again, Pepe7
I just submitted a reply to you but not to your reply above. I just reread this one and realize that i missed something before. I notice now (my bad) that you say that the Senn rs120 has a 3.5mm connector/cable. If that works, there is no doubt that I will buy that headphone. But I read somewhere (I really have been searching) that there is a difference between an analog audio out named Headphone Jack and one named just Analog Audio Out 3.5mm. Maybe I should write or call Sennheiser instead of Vizio. Thanks for answering... if you have any other ideas they'll be always welcome.