Like tweeting, it is not feasible to describe something like Ambiophonics in a forum such as this. But basically Ambiophonics is so named as to be accepted as the inevitable replacement for stereophonics and 5.1 at least in the same sense that 5.1 has not replaced stereo and stereo has not really displaced mono. (Think news broadcasts, AM radio, telephones, shortwave, muzac, TCM. etc.). Like stereo and its cousin 5.1, Ambiophonics can be used to reproduce 2.0 or 5.1, 7.1, 10.2 etc. media. Also although one can make optimized Ambiophonic 2.0 or Panambiophonic 4.0 recordings using an Ambiophone, a normal Ambiophonic playback system is fully compatible with standard exsisting recordings. Also like stereo, Ambio is in the public domain. Anybody can make Ambiophonic products or use it without charge. TACT Audio, Ambio4you and several other companies are already making such products but it is a well kept secret, alas. Also, like stereo, Ambio comes in all price ranges including DIY and free. The real price is the intellectual effort required to unlearn stereo and understand Ambiophonic principles.
In brief, Ambiophonics in all its versions is a loudspeaker binaural methodolgy. In contrast, stereophonic reproduction (including 5.1) is based on an unusual sonic illusion akin to an optical illusion and as such has easy to demonstrate psychoacoustic defects that cannot be overcome, only tolerated. I use the term binaural to mean how we hear normally-nothing to do with earphones. Basically, binaural technologies, such as Wavefield Synthesis, Ambisonics, and Ambiophonics, strive to produce a home soundfield that closely resembles what you would have heard had you been at the microphone position during the recording session. For a variety of reasons, the stereo loudspeaker triangle cannot reproduce such a soundfield even if the recording, the media, and the reproducing equipment are perfect.
For audiophiles, who are not interested in the 3D reproduction of movies, video, games, etc. listening Ambiophonically to 2.0 media such as LPs,CDs, and MPs yields reproduction with greater clarity, depth, timbral fidelity, dynamic range, purity, perspective, pace, coherence, and musicality. In brief, you get more normal psychoacoustic realism even if you don't care about the wide soundstaging or creating a Domestic Concert Hall, as John Atkinson once termed this.
You can see a Domestic Concert Hall if you read the recent Bergen Record (N.J.) newspaper article at
click at the bottom to see the second article.