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Interesting problem - crossover for inexpensive 3 way build, can it be done?


TVOR-Ceasar
(@tvor-ceasar)
Honorable Member Moderator
Joined: 2 years ago
Posts: 719
Topic starter  

This is an exercise to see if a low cost 3 way system can be smoothed out by the crossover or is it just too much to fix? This is in response to what I found in this thread (Thanks for the grey matter exercise @Jriver146) and what I found when trying to come up with something to try to get the response respectable. Here is all the raw driver info below:

DC200 8 fr

Woofer Freq.

DC200 8 imp

Woofer Imp.

Visaton M10 graph

Mid graphs

HiVi T20 8 Freq

Tweeter Freq.

HiVi T20 8 Imp

Tweeter Imp.

It may not be immediately apparent, but there are some really big peaks that will need to be dealt with. See below. Note: Blue=system response, Red=Woofer, Yellow=Mid, Black=Tweeter

JRiver Small Tower No Crossover

No crossover

JRiver Simple Crossover  1

First order, Mid reverse polarity

JRiver Small Tower Small Tower Simple Crossover  4

Last iteration, Mid and Tweeter reverse polarity.

As you can see, I got a lot of it tamed, but there's still a peak around 5200 that I just can't seem to tame. Anyone else want to take a stab at it and see what they can do?

@123Toid, I'm moving the convo here since it's not directly related to Jriver146's thread and I don't want to hijack it.

-Charlie
https://www.youtube.com/user/TheTrueVoiceOfReason


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123Toid
(@123toid)
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Joined: 4 years ago
Posts: 1680
 

Can you do me a favor and link the names to the Drivers? @tvor-ceasar

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


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TVOR-Ceasar
(@tvor-ceasar)
Honorable Member Moderator
Joined: 2 years ago
Posts: 719
Topic starter  

@123toid In this post

I see I forgot to add the zip file with the FRD, ZMA, and the Driver data file for WinISD. Sorry about that. The page froze during the first try and I had to redo it and missed posting the file.

-Charlie
https://www.youtube.com/user/TheTrueVoiceOfReason


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123Toid
(@123toid)
Illustrious Member Admin
Joined: 4 years ago
Posts: 1680
 

@tvor-ceasar

This is a hard one.  Mainly due to the midrange.  I really do not like it's response.  However, this is as good as I could get it.  I guessed at the off-sets, since I can't measure them, but they should be fairly close to those.  The mid and woofer are not perfectly in phase, but close.  Anyway here is a picture and all the files saved, including my xsim save, if you want to import it. 

cheap 3 way

P.S. That 4uf on the woofer doesn't do anything.  I just forgot to delete it 🤭 

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


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