This is my soundbar: http://www.amazon.com/Sony-HT-CT150-Sound-Bar-System/dp/B003C1AO2I/ref=sr_1_1?ie=UTF8&qid=1363056923&sr=8-1&keywords=sony+ht-ct150   The receiver (and HDMI switcher) is built into the subwoofer.  If I got an AV receiver, would I just connect all of my peripherals and TV...

I have a soundbar w/ a subwoofer (Sony HT-CT150) hooked up to my plasma TV (Panasonic TC-P50U50) via HDMI ARC. I also have a cable box, Blu-Ray player, and an Xbox 360 hooked up to the soundbar via HDMI, so that the soundbar acts as a switcher. How can I add a wireless headphone to this system...