how to wire 3 speakers into a crossover
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=103884
Printed Date: April 27, 2024 at 7:22 AM
Topic: how to wire 3 speakers into a crossover
Posted By: steezs
Subject: how to wire 3 speakers into a crossover
Date Posted: April 10, 2008 at 5:43 PM
I have 2 mid bass speakers and one tweeter. Can someone show me by diagram of how to wire these 3 together with with a cross over? Id ike to make a 2nd order narrow band pass for the mids of high pass 80 hertz and low pass of 800 hertz and the tweeters 2nd order high pass at 5000hertz. I want the net impedence above 6ohms and all 3 of the speakers are 4 ohms.
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THE DUCE
Replies:
Posted By: sedate
Date Posted: April 10, 2008 at 6:55 PM
steezs wrote:
I want the net impedence above 6ohms and all 3 of the speakers are 4 ohms.
Your making a stereo monitor with left over car stereo parts? steezs wrote:
Id ike to make a 2nd order narrow band pass for the mids of high pass 80 hertz and low pass of 800 hertz and the tweeters 2nd order high pass at 5000hertz
I don't understand the xover points you want. Retype that sentence, pay attention to grammer and comma placement, and then when like 30 different meanings can't be extrapolated maybe someone will help you. ------------- "I'm finished!" - Daniel Plainview
Posted By: steezs
Date Posted: April 10, 2008 at 7:22 PM
I mean after you connect them all together the speaker impedance cannot be less than 6 ohms or my amp will get loved up.
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THE DUCE
Posted By: sedate
Date Posted: April 10, 2008 at 7:28 PM
Right - I know that because your final sentence adheres to the rules of the English language. This sentence, on the other hand, is a real mess: steezs wrote:
Id ike to make a 2nd order narrow band pass for the mids of high pass 80 hertz and low pass of 800 hertz and the tweeters 2nd order high pass at 5000hertz.
Try again. ------------- "I'm finished!" - Daniel Plainview
Posted By: i am an idiot
Date Posted: April 10, 2008 at 8:08 PM
What about the frequencies between 800 and 5000? I think you will have a hole.
Posted By: i am an idiot
Date Posted: April 10, 2008 at 8:09 PM
https://www.the12volt.com/caraudio/cross.asp You need to read the entire page, there are formulas to give you the capacitor and inductor values. comma ^
Posted By: steezs
Date Posted: April 10, 2008 at 8:28 PM
ya well the speakers kinda suck just wanna see how they sound, ok then cross the mid speakers from 80-5000 hertz and the tweeters for the higher frequencies.
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THE DUCE
Posted By: i am an idiot
Date Posted: April 10, 2008 at 8:37 PM
That would sound a whole lot better than the 80 to 800 and 5K and up
Posted By: steezs
Date Posted: April 10, 2008 at 9:01 PM
Ok, so how would i do it with all 3 speakers going to one channel with proper crossovers to each, can you make me a diagram?
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THE DUCE
Posted By: sedate
Date Posted: April 10, 2008 at 9:14 PM
idiot] wrote:
hat about the frequencies between 800 and 5000? I think you will have a hole.
Right - see that's what I took away from his sentence - but I thought to myself 'no way - this guy just doesn't know how to type' -ahh- I really should just give up.  ------------- "I'm finished!" - Daniel Plainview
Posted By: stevdart
Date Posted: April 10, 2008 at 9:23 PM
A lot of time, a lot of money, and a lot of engineering to design and build a passive crossover. Inductor prices are double what they were two years ago. If you are going to build a speaker system, the first thing to do is make very careful buying decisions on what drivers you intend to use. ------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: i am an idiot
Date Posted: April 10, 2008 at 9:28 PM
Trying real hard not to draw a picture of a monitor and a keyboard with hands typing on the keyboard, with the text
https://www.the12volt.com/caraudio/cross.asp appearing across the screen.
But I will give you this bit of helpful information. You will have to use one of the midbass drivers from 80 to around 1K and the other from 1K to 5K and then the tweeter from 5K and up. Another advantage to this is, if the midbass driver does not reproduce the higher frequencies so well, you can replace it with a true midrange driver.
This way the amp will not see any more than 1 driver at a time, Should I say "essentially" keeping a 4 ohm load across the entire audible spectrum.
Remember there are formulas on that page to help you figure out the value of the capacitor and inductor to make the crossovers.
Posted By: steezs
Date Posted: April 10, 2008 at 9:30 PM
ok but can they all be connected together to one channel?
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THE DUCE
Posted By: i am an idiot
Date Posted: April 10, 2008 at 9:32 PM
The load on your amp will be 4 ohms. What kind of an amp are you using that will not run under 6 ohms?
Posted By: steezs
Date Posted: April 10, 2008 at 9:34 PM
ok so i connect all 3 speakers in parallel with each its own cross over like the examples on the website and my load will remain at 4?
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THE DUCE
Posted By: i am an idiot
Date Posted: April 10, 2008 at 9:36 PM
Did you even click on the link I posted earlier?
Posted By: steezs
Date Posted: April 10, 2008 at 9:45 PM
ya but it just gives eamples of one driver at a time not 3 connected together
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THE DUCE
Posted By: i am an idiot
Date Posted: April 10, 2008 at 10:06 PM
You will have to build one crossover per speaker.
Posted By: DYohn
Date Posted: April 10, 2008 at 10:47 PM
I'm trying to follow here... let me see if I have it. You have two midbass drivers and a tweeter, right? You want to create a 2-way crossover with the two mid-bass drivers operating below 5KHz and the tweeter operating above 5KHz, right? If that is not correct, please describe again what you want to do, and please list the make/model of each of your speakers. ------------- Support the12volt.com
Posted By: steezs
Date Posted: April 11, 2008 at 11:01 AM
Yes, thats exactly it but i want to know if i can connect them all to one channel.
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THE DUCE
Posted By: DYohn
Date Posted: April 11, 2008 at 11:32 AM
steezs wrote:
Yes, thats exactly it but i want to know if i can connect them all to one channel.
Sure, of course you can. that's a standard 2-way arrangement. Like I asked, what are the speaker make/model numbers? ------------- Support the12volt.com
Posted By: chillin420
Date Posted: April 11, 2008 at 1:26 PM
i see what he is saying.. and i have the same kind of question also.. i have a pair of 06 alpine 5 1/4 comp and was wondering if i could add a 3" off the tweet input of my xover or will that mess with my xover or my amp? or add a 6 1/2 off the woffer output?
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you can do it....
advanced MECP, lol does it really matter....
patience is a virtue
Posted By: DYohn
Date Posted: April 11, 2008 at 2:04 PM
chillin420 wrote:
i see what he is saying.. and i have the same kind of question also.. i have a pair of 06 alpine 5 1/4 comp and was wondering if i could add a 3" off the tweet input of my xover or will that mess with my xover or my amp? or add a 6 1/2 off the woffer output?
No, you can't just do that. Adding a speaker to an existing system will shift the Xover points. You have to custom design the crossover for the specific set of speakers you want to use. ------------- Support the12volt.com
Posted By: steezs
Date Posted: April 11, 2008 at 3:25 PM
They are some doodiety pirate speakers there all 4 ohms and i probably wouldnt run over 80 rms on the mids and the tweeter maybe 25 rms max. So basically can I make the custom cross over for each speaker using capacitors and inductors and then parrallel wire them to one channel on an amp? or do they have to each be separated one channel per speaker?
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THE DUCE
Posted By: DYohn
Date Posted: April 11, 2008 at 3:58 PM
Well, again, if I understand what you want, you are trying to create a 6-ohm or greater load, right? The crossover design below will provide a generic 5Khz first order solution for two 4-ohm woofers in series and one 4-ohm tweeter. This will place an 8-ohm load on your amplifier below 5000 Hz and a 4-ohm load above that frequency, which most amps will handle even if they say 6-ohm minimum. The resisters shown are to build a pad to match the sensitivity of the tweeter to that of the woofers, but I can't tell you what those values should be unless I know what drivers you are using. So, leave them out for now unless you can get information on the speakers. I can't guarantee that this design will sound any good, mind you, but it will provide a generic solution that you can try. 2-way_5k.jpg ------------- Support the12volt.com
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