Reg Cab F150 JL W3V3 Ported box tuning recommendation.


Oldmang

CarAudio.com noob
Aug 11, 2019
36
14
Az
Hey, I've already apologized to Shredder2 for getting the 45's wrong.
I think you did a good job overall man.
How is that Bug holding up?
I'm happy to assist in any way I can btw.
Things are fixing to get busy for me so most I can do anymore is chime in.
 

Bobbytwonames

CarAudio.com Veteran
Aug 28, 2018
902
-123
I think you did a good job overall man.
How is that Bug holding up?
I'm happy to assist in any way I can btw.
Things are fixing to get busy for me so most I can do anymore is chime in.
The bug is holding up good. It really doesn't rattle that much. Everything is sound deadened and the front hood is fiberglass. The voltage stays between 13.5-14.3 while driving, and, never drops below 12.5 when I have the car off and playing music. I'm just trying to get it running right now. I fried the Pioneer tweeters during install, so, I ordered some Orion XTR 950's. They arrived today and they look nice. I've never used a 3 pound tweeter before. The sensitivity on them is rated at 111.8 and frequency response up to 28k.
 

Jeffdachef

Gunz That Turn on Nunz
Feb 5, 2013
17,820
470
South Coast Metro, CA
Hey, I've already apologized to Shredder2 for getting the 45's wrong. Remember, it was my first box build. I've already reached out to him and let him know how it turned out and that I appreciated all of his help. The cubes on the box never changed. I got the orientation of the 45's wrong.
45s dont matter much unless you start getting to the 20,000 watt rms types of setups. Most of the times people lose on the meter with 45s from what i see. They only gain if the box was weak structurally to begin with. If the port is big enough to begin with, 45s do not help airflow in anyway like they do in a transmission line enclosure. You are better off just doing wooden dowel braces and making the box solid and non resonant.
 

Bobbytwonames

CarAudio.com Veteran
Aug 28, 2018
902
-123
45s dont matter much unless you start getting to the 20,000 watt rms types of setups. Most of the times people lose on the meter with 45s from what i see. They only gain if the box was weak structurally to begin with. If the port is big enough to begin with, 45s do not help airflow in anyway like they do in a transmission line enclosure. You are better off just doing wooden dowel braces and making the box solid and non resonant.
Jeff, that's what upset Shredder2. I built the top a different way just for structural reasons. The cubic feet was never messed with. 5.57 before port, sub, and 45's. Around 4.0 net tuned to 32. I think it turned out alright. 3/4" clear coated birch. Wet sanded and cleared again.
20191112_100722.jpg
20191103_170956.jpg
20191103_164104.jpg
 
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Jeffdachef

Gunz That Turn on Nunz
Feb 5, 2013
17,820
470
South Coast Metro, CA
Jeff, that's what upset Shredder2. I built the top a different way just for structural reasons. The cubic feet was never messed with. 5.57 before port, sub, and 45's. Around 4.0 net tuned to 32. I think it turned out alright. 3/4" clear coated birch. Wet sanded and cleared again.
Without the 45s, its not the same cubic feet he'd design for. The 45s take up space so thats probably in his calculations. Its really no big deal, you are just slightly peakier and lower tuned but literally makes zero difference like .1%
 

2RZ-FE

Senior VIP Member
Mar 14, 2011
397
49
Dixon, Ca
Jeff, that's what upset Shredder2. I built the top a different way just for structural reasons. The cubic feet was never messed with. 5.57 before port, sub, and 45's. Around 4.0 net tuned to 32. I think it turned out alright. 3/4" clear coated birch. Wet sanded and cleared again. View attachment 19252View attachment 19253View attachment 19254
Ports were supposed to go vertical top to bottom in all corners except the one near the port wall and sub cutout.. Doing them horizontal front to back could change the airspace if the depth of the box is different than the height.
 

Bobbytwonames

CarAudio.com Veteran
Aug 28, 2018
902
-123
Ports were supposed to go vertical top to bottom in all corners except the one near the port wall and sub cutout.. Doing them horizontal front to back could change the airspace if the depth of the box is different than the height.
The port is exactly as Shtedder2 designed it wiseguy. I fugked up the 45's and built top with three points of bearing instead of two. The air space was never changed. Nice try though.
20191207_174505.jpg
 

Bobbytwonames

CarAudio.com Veteran
Aug 28, 2018
902
-123
Without the 45s, its not the same cubic feet he'd design for. The 45s take up space so thats probably in his calculations. Its really no big deal, you are just slightly peakier and lower tuned but literally makes zero difference like .1%
Jeff, Shredder2 designed the box with 45's. I got the orientation wrong.
20191207_174505.jpg
 

Bobbytwonames

CarAudio.com Veteran
Aug 28, 2018
902
-123
yeah 45's not ports, oops.
I admitted to screwing up the orientation of the 45's. It was my first box build ever. I also used two 3/4" port braces instead of one 1-1/2" (couldn't find one) brace like was designed. Shredder2 also designed it with a 1"mdf top ( I asked him to) and a 3/4" birch bottom. I switched it to a 3/4" birch top and 1" mdf bottom because I wanted the box to look better. So, the box was built different, but never altered the cubic feet.
 

Bobbytwonames

CarAudio.com Veteran
Aug 28, 2018
902
-123
how's it sound?
It sounds incredible to me. I've never had bass like this in a vehicle. Absolutely punishing in a small vehicle like my bug. The American Bass VFL 6.5" midbass in the doors are just what I wanted up front. The Pioneer Pro 6.5's on the rear deck are incredibly loud on just the Taramps DS250X2 ($70). I just received my Orion XTR 950 tweeters for the doors, but haven't installed them yet. I fried the Pioneer Pro tweeters during install.
 

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