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Multi-Way Conventional loudspeakers with crossovers

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Old 25th April 2004, 05:39 PM   #51
Tim Moorman is offline Tim Moorman  United States
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Join Date: Nov 2002
Location: Indiana
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Time alignment is pretty complex and best done with an active xover and a built-in delay feature, if you have one or wish to build it.

Problem is the delay varies with each driver and with frequency, so setting the tweeter back 2" or something only works for a very narrow band of a few hertz. I have done a few experiments and can detect some improvement with varying physical offset, but the real answer is driver and freq dependent, and must be done with the crossover.

The room is also a factor. With the tweeter inside, try toeing the speakers heavily inward so they are actually firing at a space 12" in front of your nose. You will hear more direct vs reflected sound, and the tweeters are rotated back a bit (in time). With OB it won't quite be the same, but it will take some of the room out of the equation.

Tim
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