Driver spacing and crossover frequency

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#21
planet10 said:
I did explain that in the post before you asked.

It is simple. Measure the driver centre-to-centre. Take the speed of sond (13,500 in/sec), divide by the c-c (in in) then divide by 4 to get the ¼ wavelength frequency. That is the highest XO you can use to achieve the ¼ wavelength criteria.

You can of course choose speed of sound in other units as long as the c-c units are the “same”.

dave
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You mean if the C2C(center of the speaker diaphragm) distance between the drivers is 6inch then 13500(here all unit in inch) divide by 6 and then again divide by 4? if yes then now it is crystal clear to me. thank you, thank you so much 🙂
 
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#23
Some drivers will be good with this frequency, but as many tweeters will not be happy at 560Hz the question becomes more - how much of a problem is it?
bcrazy said:
Does this mean they are poorly comstructed from start, or is is possible to design a good sounding speaker with a crosseover frequency higher than one wavelength?
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On your listening axis you should be able to make things work even with large spacing. It is the behaviour above and below that axis which will be affected. In some cases it is possible to balance and compensate this very well. In some cases you can make improvements in other ways such as treating your ceiling.
 
#25
TroyMcC said:
Say, you have a 2-way system with tweeter and woofer then you need a crossover to separate the signal between those two. So, you will employ a low-pass which lets low frequencies through but for higher frequencies there will first be a gentle decline and then a steep drop. For the high-pass the same is true in reverse...
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Beautifully explained. The matter is more clear to me now :magnify:
 
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