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Passive Crossover Design Needed


Bayilo
(@bayilo)
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Joined: 1 week ago
Posts: 3
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Hello DYI Community!

Your assistance is needed to design a passive crossover for a speaker with 4 drivers (1 tweeter, 1 Mid, and 2 woofers). The design input files (frd, zma, REW measurements...) are attached below. The attachment contains a tweeter data file named A1, a Mid driver file named A2, and two identical woofers files named A3 and A4. A three-Way design is preferred, however a two-way design would also be welcome. The speaker must include/use all four drivers.

I am reaching out to you because I have hit an hurdle and can no longer proceed successfully. Thank you in advance for your assistance.

 


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123Toid
(@123toid)
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Joined: 3 years ago
Posts: 1396
 
Posted by: @bayilo

 

Hello DYI Community!

Your assistance is needed to design a passive crossover for a speaker with 4 drivers (1 tweeter, 1 Mid, and 2 woofers). The design input files (frd, zma, REW measurements...) are attached below. The attachment contains a tweeter data file named A1, a Mid driver file named A2, and two identical woofers files named A3 and A4. A three-Way design is preferred, however a two-way design would also be welcome. The speaker must include/use all four drivers.

I am reaching out to you because I have hit an hurdle and can no longer proceed successfully. Thank you in advance for your assistance.

 

@bayilo

It sounds like you want us to design a crossover for you?  I am sure you could hire one of us to do that, but that isn't what this forum is for.  It is designed to help you as you are designing the crossover.  Look things over that we see as issues, ask you questions you might not have thought of, etc.  If you want to show us what you have so far and where you are stuck, that would be a good starting point.  You may need to post a few more times before you can post pictures though. 

https://www.youtube.com/123toid


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Bayilo
(@bayilo)
New Member Registered
Joined: 1 week ago
Posts: 3
Topic starter  

Here is my design:

 

image

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Mistersota
(@mistersota)
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Joined: 2 weeks ago
Posts: 7
 

@bayilo I'm going to be honest and tell you that those measurements probably aren't worth much. There is a ton of room reflection and I don't think they are all with the same voltage and distance. What drivers are they? The manufacture's generally will give frequency response and impedance graphs. You have to assume a few things, but they are generally good enough. 


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123Toid
(@123toid)
Illustrious Member Admin
Joined: 3 years ago
Posts: 1396
 

@bayilo

There's a lot going on here.  As stated you have quite a few room, reflections in the measurements, but if you want to keep those, I would start by figuring out your z-offsets. I can't tell if you have figured that in or not. 

This shows you how to do it all in xsim.

Once you have figured that out, we can go to step 2. 

P.S.  If the bottom woofers are going to play the same frequency range, you might as well measure them together. 

https://www.youtube.com/123toid


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Newegg

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