I have had the VSX-94TXH for almost 10 years now and the sound has been great with my 7.1 surround configuration. I recently purchased a new 4k Samsung big screen and as a result I no longer connect my devices (cable box, Blu-ray, etc..) to the 94TXH directly. Instead I connect them directly to the TV and use the TV's optical out to the receiver's input. Aside from that minor inconvenience everything continues to work well.\n\nMy question is in regard to where I am missing out with a 10 year old receiver from a sound perspective. Would the newer surround sound technologies that I would get with a new receiver produce a noticeable improvement in my Home Theatre's sound experience?