Where do they go?

[Simek4life 10+ year member]

quick question....

when some of you say your LP filter is at 80 and your Hp filter is at 100, are you missing out on some of the frequencies such as 81-99 hz??

just thought about it and it got me wondering. thanks

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[davidfre21 5,000+ posts]

depends on what your are trying to accomplish

 

[Simek4life 10+ year member]

depends on what your are trying to accomplish

could you explain?

 

[Thieroff 10+ year member]

well, crossovers are on a slope, generally you wont lose much

It also depends on the car, if there are any peaks in the response around there

CT

 

[Immacomputer 10+ year member]

You don't lose them but they become attenuated. If you naturally have a peak in those frequencies, it may come out flat or maybe even still peaky!

Crossovers do not eliminate frequencies but just make the quieter.

 

[Simek4life 10+ year member]

ok thanks

 

[Simek4life 10+ year member]

would it be fine to crossover my comps at 60hz and set the LP at 80hz?

 

[60ndown 10+ year member]

would it be fine to crossover my comps at 60hz and set the LP at 80hz?

experiment with different points until it sounds best to you. but that is a good place to start

 

[xluben 10+ year member]

You don't lose them but they become attenuated. If you naturally have a peak in those frequencies, it may come out flat or maybe even still peaky!

Crossovers do not eliminate frequencies but just make the quieter.

and the area shown dipping down is actually going to be add the two speakers, and fill in the dip:

purple = subwoofer response

green = front stage response

yellow = total response

here is what would happen if you set both crossovers to the same point:

you get a peak in response!

depending on the crossover slopes will determine how far apart the -3dB points of the crossovers should be set.

 

[xluben 10+ year member]

would it be fine to crossover my comps at 60hz and set the LP at 80hz?

this is backwards!

ie. 60Hz low pass for the sub and 80hz high pass for the comps

see my above post.

 

[Simek4life 10+ year member]

ok that makes sense now thx

 

[Immacomputer 10+ year member]

and the area shown dipping down is actually going to be add the two speakers, and fill in the dip:
purple = subwoofer response

green = front stage response

yellow = total response

[img ]http://www.bcae1.com/images/gifs/xo2ndbea.gif[/img]

here is what would happen if you set both crossovers to the same point:

[img ]http://www.bcae1.com/images/gifs/xo2ndcha.gif[/img]

you get a peak in response!

depending on the crossover slopes will determine how far apart the -3dB points of the crossovers should be set.

Well, that peak is assuming that there is no cancelation and that the subs and speakers are in phase.