i need help building for a vehicle
Printed From: Speakerplans.com
Category: Plans
Forum Name: Plan Requests
Forum Description: All plan requests here
URL: https://forum.speakerplans.com/forum_posts.asp?TID=92489
Printed Date: 27 March 2026 at 2:16am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: i need help building for a vehicle
Posted By: akadj
Subject: i need help building for a vehicle
Date Posted: 25 June 2015 at 6:32pm
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Hey guys, I'm looking for some help in building an enclosure for my car. It doesn'thave much room ddimensions are 16×16×35. It is just for pure SPL, I want to try it in a 60hz burst at a car show coming up and I thought that someone here would have a good design or idea on a horn or scoop that really peaks and blasts out the 60hz notes? I seen a guy try it in an astrovan several years back with a pair of cerwin Vega stroker pro 18's. I've got a wack load of woofers kicking around.. 3 pairs of 8's, 1 pair of 10's, 3 pairs of 12's, and 3 15's |
Replies:
Posted By: kr1sounds
Date Posted: 25 June 2015 at 7:01pm
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im guessing those dimensions are inches and what make are the drivers. cant just stick any driver into a program without knowing its parameters ------------- I MAN SERVE SELASSIE CONTINUALLY... NO MATTER WHAT THE WEAK HEART SAY fostonshfs.webs.com |
Posted By: akadj
Date Posted: 25 June 2015 at 8:01pm
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* Electro Mechanical Parameters Name= APX15D1.818.05302004 Note= Model= TSL Domain= FreeAir Shape= Round Profile= Cone Fmd= 3.0000 KA Qmd= 1.0000 Flp= 8.0000 KA Qlp= 2.0000 Znom= 2.0000 Ohm Revc= 2.0000 Ohm Sd= 89.0000E-3 M² Mmd= 318.0000 g Pmax= 3.0000E3 W Rtvc= 83.3333E-3 °C/W Xgap= 30.0000 M Xcoil= 50.0000 M Xmax= 10.0000 M Krm= 20.4400E3 mOhm Erm= 703.0000E-3 Kxm= 153.0000E-3 mH Exm= 457.0000E-3 Rms= 13.5452 N·S/M Mms= 333.2584 g Cms= 9.3843 uM/N Vas= 10.6170 Ltr Fo= 89.9971 Hz Qms= 13.9124 Qes= 0.7280 Qts= 0.6918 BL= 22.7536 T·M Levc= 1.3252E-6 H SPLo= 92.1008 dB No= 1.0192 % |
Posted By: akadj
Date Posted: 25 June 2015 at 8:03pm
| Yes my dimensions are in inches |
Posted By: akadj
Date Posted: 25 June 2015 at 8:45pm
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Another set of dimensions are 14" ×17" ×42" Either of those two will work. Changes a little depending where the enclosure will sit. I'm not sure how big a horn or scoop is for a single 15" or single 12".. Hoping I have enough room |
Posted By: all bass
Date Posted: 26 June 2015 at 9:22am
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Bill Fitzmaurice does a horn for an 8" driver called the Auto Tuba. Should bring a lot more SPL than a reflex box. Never heared it though. ------------- https://www.instagram.com/my_modular_journey/ |
Posted By: akadj
Date Posted: 26 June 2015 at 3:35pm
| Where would I find the plans for this auto tuba? |
Posted By: APW
Date Posted: 26 June 2015 at 6:39pm
http://www.billfitzmaurice.com/AutoTruckTuba.html |
akadj wrote:Posted By: _djk_
Date Posted: 26 June 2015 at 9:58pm
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The correct frequency for SPL is the resonant frequency of the car interior, it will be much higher than 60hz.
Build your system for sound quality, then use (switchable) EQ at the resonant frequency. ------------- djk |
Posted By: akadj
Date Posted: 27 June 2015 at 5:53am
| The highest frequency allowed is 60hz. So I might as well tune the enclosure to that frequency |
Posted By: akadj
Date Posted: 28 June 2015 at 4:38am
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Dimensions in mm if it helps any.. 1st box 710mm × 480mm × 330mm 2nd box 1060mm × 430 × 355mm Again I'm looking for a box that basically has its peak around 60hz and I can use 8's 10's 12's or 15's.. I'll try anything just give me some prints and I'll build it!! |
Posted By: b grade
Date Posted: 28 June 2015 at 7:32am
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I made a 10 inch band pass sub for my car tuned under 60hz. The box is only 2 cubic feet. You need to design those for your driver though. I don't fancy dropping in random drivers and hoping for the best. At the very least you need to sim a driver replacement to see if it will function. Seriously, if it is all about lower than 60 hz and it a competition, to me that screams bandpass sub. You can not make a bass horn in the small size. The band pass is not a surgical instrument. It is a blunt weapon. Effective though. Not too hard to build either.
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