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acoustic speaker

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  1. Thanks for reply. When you say "BTW, without these enhancements, the Alison speakers are probably a better bet for most people IMO. They will at least play the top octave of the audible spectrum. That's very important if you can hear it", I'm sure I can't hear it. But my idea was that the Allison drivers supposedly radiate the sound in a half hemisphere so that if you walked halfway around the speaker, you would hear what you were talking about - that is the sound would be the same on either side as the sound from the front. You couldn't walk behind the Allisons and hear the same sound, but because they are designed to be backed up against the wall or in a corner, the front and side sound should be reflected from the walls ala the Bose 901. So I would assume the Allison and Bose sound would be similar - but I don't know - I have heard the Allisons, but not the Bose 901s.
  2. My thanks, too, to soundminded for his reply. When I see a word like proprietary, I understand the secretive nature of explaining a function or use - especially if one is going to patent it or doesn't want another to steal the idea and patent it. If I understand soundminded correctly, the inherently low absolute vector distortion advantage disappears when the Bose 901 drivers start beaming at high frequencies. I believe that the Roy Allison drivers and speaker implementations also allow sound waves from a single instrument to arrive at the listener from a multitude of directions also - and his tweeters minimize the beaming. Do you agree or disagree soundminded?
  3. No, I did not know he was secretive - why would he be secretive on a forum where information on speakers is desired? I know. Ask him. I sent him an email, but no reply as yet. Maybe he IS hiding.
  4. I am new to this forum, but in scouting around, I think I saw where member "soundminded" modified his Bose 901 drivers or equalizer or something to improve the 901s. Can someone point me to where this information is in this forum?
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