anyone wanna help explain this stuff to me?

[marleyskater420 5,000+ posts]

what do crossovers do?signal processors?equalizers?and what does the "24db octave crossover" mean?i wanna learn what all this stuff means.if its too much to type just contact me via aim -marleyskater420,thanks in advance.

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[awestone05 10+ year member]

i felt like i should reply to this post cause i just had a few of the same questions answered for me...

a crossover divides up the frequencies among the drivers being used. for instance, a tweeter isn't going to be affective at reproducing the same frequencies that a midrange woofer is going to reproduce. the crossover takes the signal and breaks it up, sending the desired frequencies to the specific driver. that make any sense?

i could be wrong, but i think a signal processor is another phrase used for a line driver. somebody correct me if i'm way off... but, what i understand is that a line driver takes the signal from your HU and increases its voltage making a stronger signal. in turn you get a cleaner signal and less distortion.

equalizers give you the capability of contouring the sound to your vehicle, or your preference. you basically have volume control over different frequency "bands". that's a simple way of saying it i guess.

lastly, a 24db/octave crossover is the slope at which the crossover rolls off of the undesirable frequencies. in other words... every octave over or under the cut off point is going to drop 24 db. it helped me a lot just to see it in a slope form.

something like this...

24db/octave 12db/octave

- -

- -

- -

- -

- -

- -

- -

so, as you can see, the driver is going to drop off of the cut-off point pretty quickly w/ a 24db octave slope meaning not many frequencies below your x-over point will be reproduced by the driver. i think a pretty common slope is 12db/octave, but i could be wrong. anyways, i hope that helped some. i'll let the elders of the board straighten out anything i screwed up. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

oh yeah, one more thing... hope you don't mind if i use your quote in my sig lol... it thought it was pretty funny. peace

 

[awestone05 10+ year member]

well, i had all these nice slopes made out and then when i posted it up, it moved them over to the side and made like two straight collumns (sp?). oh well, hope it made sense anyway.

 

[denim 5,000+ posts]

pretty close on everything but the processor, there are many different types of processors out there, some are for bass optimization some are for creating a center channel, some are for surround sound, some can be used for phase correction, the list goes on, there are a wide variety of procesors, now what they do is all up to what you need //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[marleyskater420 5,000+ posts]

i felt like i should reply to this post cause i just had a few of the same questions answered for me...
a crossover divides up the frequencies among the drivers being used. for instance, a tweeter isn't going to be affective at reproducing the same frequencies that a midrange woofer is going to reproduce. the crossover takes the signal and breaks it up, sending the desired frequencies to the specific driver. that make any sense?

i could be wrong, but i think a signal processor is another phrase used for a line driver. somebody correct me if i'm way off... but, what i understand is that a line driver takes the signal from your HU and increases its voltage making a stronger signal. in turn you get a cleaner signal and less distortion.

equalizers give you the capability of contouring the sound to your vehicle, or your preference. you basically have volume control over different frequency "bands". that's a simple way of saying it i guess.

lastly, a 24db/octave crossover is the slope at which the crossover rolls off of the undesirable frequencies. in other words... every octave over or under the cut off point is going to drop 24 db. it helped me a lot just to see it in a slope form.

something like this...

24db/octave 12db/octave

- -

- -

- -

- -

- -

- -

- -

so, as you can see, the driver is going to drop off of the cut-off point pretty quickly w/ a 24db octave slope meaning not many frequencies below your x-over point will be reproduced by the driver. i think a pretty common slope is 12db/octave, but i could be wrong. anyways, i hope that helped some. i'll let the elders of the board straighten out anything i screwed up. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

oh yeah, one more thing... hope you don't mind if i use your quote in my sig lol... it thought it was pretty funny. peace

hey thanks for the help.i get most of it cept for the octave db slope thing...i dont even know what an octave is...HAHAHA I LOVE YOUR SIG.....its the greatest one iv ever seen...keep it that way.thanks again for all the help

 

[awestone05 10+ year member]

lol no problem, i have no life... setting here and typing out halfway incorrect explanations is what i do for fun. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[marleyskater420 5,000+ posts]

lol no problem, i have no life... setting here and typing out halfway incorrect explanations is what i do for fun. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

ya same here...i mean i cant walk anywhere...hahaha...what is an octave??

 

[marleyskater420 5,000+ posts]

lastly, a 24db/octave crossover is the slope at which the crossover rolls off of the undesirable frequencies. in other words... every octave over or under the cut off point is going to drop 24 db. it helped me a lot just to see it in a slope form.

something like this...

24db/octave 12db/octave

- -

- -

- -

- -

- -

- -

- -

so, as you can see, the driver is going to drop off of the cut-off point pretty quickly w/ a 24db octave slope meaning not many frequencies below your x-over point will be reproduced by the driver. i think a pretty common slope is 12db/octave, but i could be wrong. anyways, i hope that helped some. i'll let the elders of the board straighten out anything i screwed up.

is the lower the octave the better?so like 12db/octave would be better than 24?learn me good

 

[awestone05 10+ year member]

lol i'll admit i thought you were teasing when you said you didn't know what an octave was. i guess i take for granted that i've played piano and bass guitar most my life... i assume everybody knows what an octave is.

an octave is a special musical interval between two tones, formed when the ratio between the frequencies of the tones is 2:1. the ear hears an equivalence between the tones when this is the case. with regard to frequency, the octave interval is much wider at high frequencies than at low frequencies. for example, one octave above 40 Hz is 80 Hz, but an octave above 1,000 Hz is 2,000 Hz. both of these intervals are heard as musically similar, however. it all gets into logarithmic junk, and i don't really understand it all to tell you the truth... but i know what i need to know, and that's that a 24 db/octave slope is going to mean less frequencies below the cut-off point than a 12 db/octave slope. that may not have made any sense once again, but if it did, great. if not, just let me know and i'll attempt at screwing up your idea of an octave once more. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

peace

 

[marleyskater420 5,000+ posts]

lol i'll admit i thought you were teasing when you said you didn't know what an octave was. i guess i take for granted that i've played piano and bass guitar most my life... i assume everybody knows what an octave is.
an octave is a special musical interval between two tones, formed when the ratio between the frequencies of the tones is 2:1. the ear hears an equivalence between the tones when this is the case. with regard to frequency, the octave interval is much wider at high frequencies than at low frequencies. for example, one octave above 40 Hz is 80 Hz, but an octave above 1,000 Hz is 2,000 Hz. both of these intervals are heard as musically similar, however. it all gets into logarithmic junk, and i don't really understand it all to tell you the truth... but i know what i need to know, and that's that a 24 db/octave slope is going to mean less frequencies below the cut-off point than a 12 db/octave slope. that may not have made any sense once again, but if it did, great. if not, just let me know and i'll attempt at screwing up your idea of an octave once more. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

peace

i get the 2:1 thing going on.what u mean less frequencies?do u have aim?im me at marleyskater420.that would be easier than the forums.thanks