Originally Posted by pawel8
It sounds like I have to buy DX5 unit.
"Thanks" to my sons I have 200 + Blu-ray discs and library is growing.
Randy, [an Ayre dealer] who by the way speaks very highly of you, is into 2 channel audio and he likes turntables with Audio Research tube preamp and amps.
The only solid states amplifiers he likes are one from Your Company.
With 200 Blu-ray discs, that is at least a $4,000 investment. And it sounds like that will continue. It only makes sense to get the most out of them.
If you are like me and an Ayre disc player is your ONLY video source (ie, no cable or satellite), the picture quality will shock you. Well, maybe not "shock" you, but it will increase your enjoyment of film watching immensely.
One of the secrets to great performance is to completely isolate your video and audio systems. The DX-5 (and all Ayre video disc players) do this, and the result is both better sound and better PQ. All other video sources tie the video ground and the audio ground together, which introduces noise and ground loops into both systems.
If you do use other video sources, your options are limited. If you have a top flight two-channel preamp (and don't listen to surround sound) then a few models (Ayre and Levinson are the only two that I know of) will disconnect the ground of the unselected inputs from the audio system.
If you have a surround-sound system, then it is really tough. We've toyed with the idea of making a ground-isolating HDMI audio/video splitter, but I don't know if there's enough demand for it. Since HDMI has take over everything, about the only thing to do is to unplug the unused HDMI cable(s) when you are going to do some SERIOUS movie watching.
When you do this (assuming you are using an Ayre video disc player), it will completely change your experience of watching film. Remember that all we are doing is looking at a flat, two-dimensional array of colored dots. The average movie has an edit every two seconds. When that edit occurs you are faced with a completely different array of colored dots.
Your brain has to somehow interpret all of those patches of color and make sense of them. That small, blurry tan blob is a face in the background. That broad, vertical brown line is a tree trunk in the foreground, and so on. In real life we are used to that. Turn your head quickly and and you are faced with a new set of colors to interpret. We got really good at it because for 500,000 years our lives depended on it. Nowadays it is only when we drive that it becomes that important.
With a standard video setup (where the video and audio ground are tied together), some sort of subliminal noise is introduced into the system. Then every time there is a scene change, it takes a split second to "assemble" the dots into a coherent scene in your brain. Your brain has to work to do this and by the end of the movie (and ten thousand edits!) you are fatigued.
When the grounds are isolated, watching a movie is just as natural as real life. There is no fatigue factor. You end up becoming more involved in the film and it is almost impossible to turn it off.
Sorry, it's a crappy thing to tell most people because they have such complex systems with so many sources. It becomes difficult to isolate the grounds. My best advice is to use the Toslink output of all of your other video sources. You won't be able to use the latest sound formats, but normally these other sources are not your high quality sources anyway.
Then keep ALL of your video connectors away from your audio system. Have them go straight to your video display. If it doesn't have enough inputs, buy some sort of video switcher for the less critical sources and run them through the switcher. Send the best sources directly to the display, as the switcher will inevitably introduce some small degradation. When you isolate your video and audio systems, you will have to manually switch each input (unless you have a remote with a macro or a Crestron), but the rewards will be substantial.