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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: Localization posted by 3db on November 10, 2016 at 02:58:17:
Hey 3db (which I would write as 3dB, but that's another topic), you're on the right track, but missing the all-important details.
Crossing below about 80 Hz, which is generally where we can start to perceive the source direction of a sound, does not mean that the "sub" does not produce output above that frequency. The "slope" of the crossover is just as important as the x-over frequency. For example, say the x-over is 60 Hz, with a slope of 12 dB/octave. This means the sub output is down 3 dB at 60 Hz, and is down 15 dB at 120 Hz. Without a calculator and the formula handy, let's say the sub output is down about 8-10 dB at 90 Hz. That is readily audible. That is one reason why two subs are often necessary, placed near each of the main speakers.
As I've written multiple times, buy "Why You Hear What You Hear".
:)
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Follow Ups
- RE: Localization - Inmate51 09:01:38 11/10/16 (1)
- Me thinks - 3db 17:27:10 11/10/16 (0)
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