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Box tune for SQ?

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=47154
Printed Date: May 15, 2024 at 4:36 AM


Topic: Box tune for SQ?

Posted By: mrdragon
Subject: Box tune for SQ?
Date Posted: January 07, 2005 at 6:32 PM

Hi everyone,
Need to ask about port tuning...35 hertz would that consider to high for SQ?????
Cheers :)



Replies:

Posted By: promodeepcycle
Date Posted: January 07, 2005 at 6:35 PM
what sub and car? what other speakers are in the car..? why ported? unless its a suv thats prob. to much volume

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dont be a pet monkey ..use your dmm




Posted By: mrdragon
Date Posted: January 07, 2005 at 6:39 PM
Sub = Pioneer 305C
Car = Camry Widebody
Front Speaker = 4 " none name speaker
Box size = 2.8 cu ft
Why ported??? Coz i only got 150rms for the 400rms sub!!!

Cheers :)




Posted By: promodeepcycle
Date Posted: January 07, 2005 at 7:11 PM
3x6.5deep..tuned to 36hzthat box is just a little big for single sub ported.. well for that sub.. but it will work..

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dont be a pet monkey ..use your dmm




Posted By: mrdragon
Date Posted: January 09, 2005 at 12:34 AM
Ok atm i am running 150RMS for my 400RMS sub, how much diff if i upgrade the amp and run say 400-500RMS ???
Would there be HUGE diff, else i rather keep it like this now !

Thanks :)




Posted By: KarTuneMan
Date Posted: January 09, 2005 at 2:32 PM
SQ = sealed enclosure

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Posted By: jeffchilcott
Date Posted: January 09, 2005 at 3:25 PM
If you went from a sealed to ported enclosure, then went to say a 600 watt amp. your would get a gain of 9db and maybe a little more from cabin gain.   But For SQ I would really go with a sealed box, Or if you are going ported use a slot ported box, and use a program where you can find out your vent speed. Like Win Isd.   I would not tune above 35 hz. I am tuned personally to 32 hz for daily driving

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place




Posted By: mrdragon
Date Posted: January 09, 2005 at 3:30 PM
BUT will 150RMS enought for daily use when building a seal box??? I really like boomy sound...not really want it to be loudest as possible!




Posted By: MAXST
Date Posted: January 09, 2005 at 4:00 PM

i run 100rms to two mb quart 12's and it gets plenty loud....soon to be 150 clean rms.

If you want boomy bass...you dont want SQ.    SQ is tight responcive bass.  you want SPL sound.  I suggest making a folded horn,  the box will be big, and the lower power is a must.  BUT if built right it'll be really awesome sounding.



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I need quality equipment, feel free to donate.




Posted By: mrdragon
Date Posted: January 09, 2005 at 4:02 PM
How about i want it to hit low...is that seal or ported???




Posted By: KarTuneMan
Date Posted: January 09, 2005 at 4:31 PM

BOOM is not typically related to sound quality.  The type of music you listen too as well. Rap, hip hop.......these are NOT types of music associated with "sound quality"  The BOOM your wanting will come from a tuned ported box, again, depending on your music preferance.

A sealed box will give a semi flat responce, meaning youll hear ALL of the bass, not just an over emphasized  band of frequencies, from a ported box.  A true SQ car will have the subs firing foward, with the trunk TOTALLY sealed off from the cabin. Thats very hard to do, most folks will simply turn the box to fire the subs to the back of the trunk.

When you fire them foward without sealing off your trunk/cabin you run into cancellation problems.......the bass gets louder when you open the trunk.

just some freindly info!!!   Good luck!



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Posted By: MAXST
Date Posted: January 09, 2005 at 6:12 PM

I get good SQ with the subs facing the tail lights.\

Guy on another forum took at alpine type r and put it in a ported box tuned to 26hz- the Fs of the sub i believe.  ONE TEN BTW. Made the trunk lid of his bonnie flex mad.

 I say a properly made ported box will give you more output than sealed, and give you decent SQ.  Its all in the box.



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I need quality equipment, feel free to donate.




Posted By: promodeepcycle
Date Posted: January 09, 2005 at 8:13 PM
sound quality  WILL decrease in a ported enclosure.... and sq out of an alpine type-r????? please dont make me laugh..... IT IS NOT POSSIBLE TO GET GOOD SQ OUT OF A PORTED ENCLOSURE.  period..

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dont be a pet monkey ..use your dmm




Posted By: stevdart
Date Posted: January 09, 2005 at 8:44 PM
Isn't the definition of SQ "the most faithful reproduction of the original sound"?  Personally, I think that done with a great deal of perfection, the better SQ can come from vented sub enclosures.  The subwoofer parameters have to call for it, though.





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