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Old 19th May 2010, 10:19 PM   #1
coldcut is offline coldcut  Sweden
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Default Help with Dayton Reference 2-way Project

Hi all,

I bought the Dayton RS180 and RS28A on buyout couple of weeks ago. Intention was to put them in my car, but since Iīm getting a new car with descent sound instead, I like to try them in a hifi setup.

A monitor would be nice, but size is not an issue. I have seen a few xo-designs and builds with these drivers, but mostly in mtm config.

Do you have any experience/ideas/concerns that you can share?

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Old 19th May 2010, 10:42 PM   #2
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They are excellent drivers. You'd cross them between 1300 and 2200. I'd try 1800 from the graphs I see of the drivers.
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Old 20th May 2010, 01:34 AM   #3
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HTGuide Forum - RS180 Modula MT - you asked for it, you got it!

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Old 20th May 2010, 01:05 PM   #4
coldcut is offline coldcut  Sweden
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Thanks for the reply!

Now, I looked closer at the xo used for the RS180 Modula MT, and it looks quite complicated. Not the build process itself, but the construction. A lot of components for a 2-way, with drivers that are fairly well matched from the start.

My philosophy is "donīt complicate things when the improvement donīt match the effort".

Any suggestions about this? Can the xo be made simpler?
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Old 20th May 2010, 01:07 PM   #5
doug20 is offline doug20  United States
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You need to ask the DIY builder of that speaker.

He probably has good reasons for adding extra components.
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Old 20th May 2010, 01:20 PM   #6
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Quote:
Originally Posted by coldcut View Post
Thanks for the reply!

Now, I looked closer at the xo used for the RS180 Modula MT, and it looks quite complicated. Not the build process itself, but the construction. A lot of components for a 2-way, with drivers that are fairly well matched from the start.

My philosophy is "donīt complicate things when the improvement donīt match the effort".

Any suggestions about this? Can the xo be made simpler?
You probably could go with a first order on tweeter.
The problem with the woofer is the aluminum cone. Very nasty.
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Last edited by Inductor; 20th May 2010 at 01:22 PM.
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Old 20th May 2010, 08:53 PM   #7
coldcut is offline coldcut  Sweden
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Guess youīre right.. Well, bought some fibre board today, and will try the HT Forum project. Expect a report on how it goes..
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Old 21st May 2010, 09:59 AM   #8
coldcut is offline coldcut  Sweden
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A question about the xo.. If a need a 20uf cap, but canīt find one with that value, is there a difference using two 10uf or one 5uf and one 15uf?
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Old 21st May 2010, 06:25 PM   #9
trd1587 is offline trd1587  Canada
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In parallel ..not supposed to.
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Old 23rd May 2010, 11:14 AM   #10
coldcut is offline coldcut  Sweden
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More questions =)

Here is the xo

Click the image to open in full size.

I have the RS180 4 Ohm version, but the xo plan does no tell what they have used.

Click the image to open in full size.

To me it look like its the 8 Ohm woofer.
If thats the case, what modifications needs to be done?

Last edited by coldcut; 23rd May 2010 at 11:17 AM.
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