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Testing & Scientific Data Discussion Results from Speaker and amplifier Testing


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  #1  
Old 01-06-2013, 07:36 PM
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Default DATS vs WinISD vs Torres

So I hav a box with 4 15's sitting in my shop, so I decided to hook up the DATS to see what it was tuned to.



That is my impedance sweep. So the box is tuned to roughly 35hz if im reading the graph right.

The I decided to see what WinISD would give me for my graph and tuning of the box.

10.75 cubes net. tuned to 40.2 hz Port mach is .04



Lastly I used torres box tuning calculator.

I got 41.12 hz



conclude what you wish from the above.

all tests were done with nothing obstructing the port in the middle of a workshop, so no outside factors are involved. I will throw it in the hoopty either tonight or in the morning and see what the DATS says about in car response.



In car graph above.

The initial peak is at 22 hz
tuned to 31 hz In the car (low point)
another drop at 49 hz, which is the cars peak, don't know if that plays a roll in it.

Tuning dropped 4 hz in the vehicle itself

If i'm reading the graph wrong please let me know.

Last edited by btsteinb; 09-15-2013 at 10:25 AM.
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Old 01-06-2013, 08:12 PM
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Sweet man! I love seeing this side of car audio. Thanks.
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Old 01-06-2013, 10:27 PM
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updated with in car results.
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Old 01-06-2013, 10:43 PM
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So each program came up with different results then?
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Old 01-06-2013, 10:45 PM
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So which is accurate? Lol

Do you have any bracing? If so it's not accounted for in Torres. Also, why not plug in box dimensions into Torres and not just port?

Last edited by 99Bonney; 01-06-2013 at 10:47 PM.
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Old 01-06-2013, 10:50 PM
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Quote:
Originally Posted by xnewbx View Post
So each program came up with different results then?
Yup, Winisd was the closest, torres wasnt very far off. but WinISD is the ACTUAL tested result.


Quote:
Originally Posted by 99Bonney View Post
So which is accurate? Lol

Do you have any bracing? If so it's not accounted for in Torres. Also, why not plug in box dimensions into Torres and not just port?
the DATS is what is accurate lol

all bracing is accounted for. Just calculated that into the gross volume.

I have triple thick face and double thick side walls. just measured inside the box while I had the back panel off changing the port.
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Old 01-06-2013, 10:55 PM
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Sub up port back?
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Old 01-06-2013, 10:57 PM
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Sub up port back?
yes sir.
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Old 01-06-2013, 11:01 PM
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Lol seen that graph before. What happening is ur enclosure us using the rear hatch as an extension of the port and effictivly tuning the port lower. Instead of your port firing straight back now it is L shaped with the back hatchb involved
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Old 01-06-2013, 11:01 PM
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Good to know

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