OK, I don't want to bore anyone but I will start from the beginning. Last week I went to watch a DVD and had nothing but sound. I traced it down to a bad HDMI plug on the back of my Phillipps blu ray player. The receiver I use is a Sony STR DE 525. I have a Bose AM500 Acoustimass system, which is the base unit and 2 double cube speakers with 2 surround and I Video speakers. Now I need a new Blu ray player, but my receiver is so old, it is not compatible with anything new. I reached out to a friend when is definitely one of you guys here on this forum knowledge wise, he suggested upgrading to the Yahama receiver as it is 4K and Bluetooth and I could also listen to my music library from my phone. He told me not to buy the Bose subwoofer, but unfortunately I had put in an offer on eBay and it was accepted. So here I am on this forum asking questions if I could make it work, because I didn’t want to listen to the “I told you so” I knew would be coming. I am a Music lover and always have been. I was walking thru Costco and heard the Bose sound and was hooked. Now I know better, but the sound I get when listen to CD’s is fantastic! I am sure I don’t have an ear like most members on here, but it really sounds good to me. I would like to thank everyone here who took the time to reply to this thread!