I just installed a Symphony O/I and I'm liking what it's done for my system. Sound is more relaxed, a little deeper soundstage with better separation. My system plays louder without any fatigue. It's definitely staying. I currently have it after my FMC converter, just before my streamer. The sound is so sweet, yet more tactile.
ADD POWR Sorcer X4, Apprentice and Symphony I/O
After testing and using for six months the SORCER X4, APPRENTICE and several SYMPHONY I/O’s for video and music. I‘m amazed at the improvements to my system. My Sony 65” television has the best picture I have ever watched with these units. In my own opinion these products are a necessity for the best possible home theater system. Not only does the video experience improve, but the sound improves too. It lowers the noise floor, adds detail and depth to the listening experience. Do yourself a favor and talk with Bill about this technology. He’s a great guy to explain how this magic works.