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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: Depends on where you're sitting (or standing) posted by Baroque Obama on February 23, 2007 at 07:20:52:
Interesting moniker. I do not believe all else is ever equal. A speaker design that becomes time-coherent at say, 8 feet away and farther, on-axis, is then also time-coherent off-axis laterally at eight feet away or farther, unless it generates a lot of cabinet reflections in that off-axis direction. This ensures that a large portion of the wall reflections are also time coherent, which means they maintain clarity as they travel into the home, around corners. These reflections then also die away faster as they are not smeared out in time. Sure enough, in my experience, the sound is always more 'live' when heard from another room, than when a non-time-coherent speaker is used.
That was the horizontal effects. Vertically, once we stand up, phase shift (time delays between the drivers) is certainly introduced. Note however, that this amount of added phase shift then changes very little as you walk away from the speakers. This is because you are changing your angles to those drivers by only a very few more degrees. Thus, the additional phase shift you continue to hear does not change much more when heard from the dining room, far away from the speakers.
However when you do the math, something emerges: Those few degrees of added phase shift produced when you stood up are far, far less than the hundreds of degrees of phase shift that a high-order-crossover speaker always adds to the music, even when you are seated on its best axis!
From my experience with a very wide range of speakers over many years, this seems to be the main reason why many of those speakers elicit remarks such as 'not much change when I stand up or move around.' They also never produced sharp images on complex music either -- which many audiophiles avoid playing. Aloha
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Follow Ups
- Re: Depends on where you're sitting (or standing) - mauimusicman 12:52:12 02/28/07 (0)
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