I have Astro Gaming A40 headset and MixAmp for gaming with my Xbox 360. The Xbox is first gen and connects to my amp using component video and toslink optical audio. I then have an optical audio cable coming out of my AVR to the A40 MixAmp. This works great for Dolby Headphone technology. I just bought a PS3 and connected it to my AVR using HDMI. I cannot get PS3 audio using the optical out cable going to my A40 MixAmp. Is there anyway to get the PS3 to send audio through the optical outup of my AVR? My AVR is a Denon AVR-890. I thought about running an optical audio cable from the PS3 to the AVR, but both of the optical inputs on the AVR are being used by the Xbox and my older PVR.