Steve Deckert
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As a weekend experiment for those who want to explore soundstage -- the best way to hear a sound stage in your room is to pull your speakers well into the room to create a small triangle in the middle of the space. Point the left speaker directly at your right shoulder, and the right speaker directly at your left shoulder. Sit on the edge of your chair and lean forward. You can be as close as say 4 feet away from the speakers, the speakers can be spaced as close as 4 feet or as far as 8 feet so long as you point them correctly.
When I developed the original amps for Decware in the 90's I had a 150 year old house with three adjoining rooms, a 6 foot doorway centered in the wall leading to the second room which had two large doorways leading to the third room. I used my Decware Corner Horns on either side of this 6 foot opening which fit nicely between the opening and the side walls. I would sit where the sound crossed behind my head and would have line of sight 32 feet of depth. In the first room past the opening I put a grand piano just to look at while I played grand piano recordings. The bench of that piano fell 11 feet behind the plane of the speakers.
The room became a tool for evaluating sound stage depth. Basically how far back do the sounds render. A good sound stage in that room went back the full 32 feet. But that was only on amplifiers that used zero negative feedback. With feedback on a switch we could take a sound stage in that room where half the band was well behind the piano going back another almost 20 feet, to having the entire recording smashed into a depth of 6 feet behind the speakers putting it well in front of the piano! It was one of my favorite rooms, and is still the king of depth. I miss it, but that is where the TORII design came from and the Zen Triode as well. That is why those amps didn't have feedback.
It's funny, those test amps with feedback switches out in the real world setting on a cabinet with speakers against the wall did absolutely nothing to the sound stage because it is impossible to have a sound stage with a giant reflector between the speakers, like a wall. The only thing you heard happen when you flipped the switch is the sound got 6dB quieter. In my old listening room when you flipped the switch you were so distracted by the rear of the sound stage rushing forward towards your face that you didn't even notice it got quieter until after the shock wore off.
Soundstage is what changed me from a music lover with a pair of Bose 301 speakers bolted to the ceiling in the corners of the room to a tormented audiophile. Hearing that first 3D soundstage was so over the top and unexpected that it hooked me for life. Started Decware in fact.
Now I realize that frequency balance and timbre, dynamics, tone, vibrancy, delicacy, etc. are far more important. I have had systems that on a lot of music would image like you were in a time machine with the right music, but were in fact peaky which made other music unbearable. It's the 3D imaging on those certain recordings that is so distracting you don't care if the frequency balance is off. For most people it is not that hard to get a halfway decent balance in a room that has no chance of creating the holographic soundstage I talk about. That is normal because most of us don't have a bunch of spare empty rooms laying around.
Still, you can set any size speaker, large or small at about 1.5 meters distance from your face cross firing to your shoulders and close your eyes and with a Decware amplifier I can promise you will not be able to hear any sound come out of the actual speakers. In fact with a good source, they will actually sound like they are 10 feet away from you or more and it will sound like you are in a larger space than you really are. The first time I tried this, lead me to set up a bedroom system in a small space with full on room treatment.
Once you get this starting to happen it is time to get serious about cables otherwise it won't render. Holographic imaging is limited by the weakest link in the chain, and it can be any single connection, cable, cord, speaker position, source component or recording. Usually all of the above.
Steve
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