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Second Skin Audio

4 12's in a T-Line


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FIrst off I would like to thank Forevrbumpn for his tutorial, w/o it I probably would not have undertaken this project.

So, I decided one day that I wanted to build a T-line for a buddies car, it housed a single 12. Once I was finished with it, installed and listened, I knew right away that I must have one, it sounded amazing and produced tremendous bass for what it was. So, I went to the hardware store and purchased a butt load of glue, screws, and MDF. I started building on Saturday morning at 0600 and had the box installed on Sunday night. It wasnt complete, but it was close. I just had to see what it sounded like so I installed it. Ok, the box is 17 cu.ft with exterior dimensions of 62"w x 33"h x 28"l and houses 4 Skar Audio vvx-12's. The line is 9 feet long making it ~32hz tuned. It is a tri-fold with a port of 5" x 59". Its slightly small, ~20 sq.in. I placed this behemoth in a 06 dodge ram quad cab, but its not in the cab. I cut the bed and cab open and placed the box in the bed. Its a blow through, this way I can still haul my kids around if necessary. Ok, enough with the talk and on with the videos. Sorry I dont have progress pics or vids, I am single minded when it comes to working and normally dont stop until I drop or the project is finsihed. Ok on with the vids.

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you have 295 sq inches of port. for four twelves you need around 400.

did you do this for power handling? im curious

-Matt

2005 Dodge Magnum RT
JVC KD-AVX1

2 PPI S580.2

Obsidian Audio ST1 Horn Tweeters

PRV 8MB450s

Audio Legion 3500.1D

2 RE MT 18s

360 ah LiFePO4 Battery
SHCA 2/0

155.2 @ 29 hz



Kicker CVR 15's build
DD 3512e build
Mini T-Line Build
(6) 8s Build
Nightshade 15s Wall Build
Magnum AB XFL 12s Build
Newest Magnum Build

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That is so sick dude, I have always wanted to see someone do a big T-line like this, congrats on making it. that shit is awesome!

On 11/20/2012 at 8:54 PM, AMI CUSTOMS said:

Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol.

On 5/9/2012 at 8:45 PM, skittlesRgood said:

fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point

On 4/10/2013 at 12:26 PM, mrd6 said:

I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha

  • Soon To Be
  • '04 Ford Escape
  • US Alternator 280A Hairpin
  • D4800 Under the Hood
  • (6) XP3000's in Rear
  • 1/0 SHCA & XS Power 4 runs to back
  • TORK2 kit from Tony @ CE Auto Supply
  • Pioneer DEH-80PRS
  • DD AW6.5 (2) per door
  • *Tweeter Unkown*
  • DD SS4a & C3d
  • (2) SCV4000 @ .5Ohm
  • (2) 15" Sundown Zv5
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Np dude, Those guys that are talking about the calculations know what they are talking about when it comes to boxes. If you didn't have space to have it proper, its not a error but what ever.

On 11/20/2012 at 8:54 PM, AMI CUSTOMS said:

Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol.

On 5/9/2012 at 8:45 PM, skittlesRgood said:

fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point

On 4/10/2013 at 12:26 PM, mrd6 said:

I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha

  • Soon To Be
  • '04 Ford Escape
  • US Alternator 280A Hairpin
  • D4800 Under the Hood
  • (6) XP3000's in Rear
  • 1/0 SHCA & XS Power 4 runs to back
  • TORK2 kit from Tony @ CE Auto Supply
  • Pioneer DEH-80PRS
  • DD AW6.5 (2) per door
  • *Tweeter Unkown*
  • DD SS4a & C3d
  • (2) SCV4000 @ .5Ohm
  • (2) 15" Sundown Zv5
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Np dude, Those guys that are talking about the calculations know what they are talking about when it comes to boxes. If you didn't have space to have it proper, its not a error but what ever.

Yea, I cut the hole in my cab as large as I dare. Probably made it too large anyways. The hole is 59" x 19", only a couple inches left below the glass. Looks like I have to fiberglass the box, the bed liner isnt sealing it well enough. I will Start with the top and see how that does.

Anyone know if I have to use the matt or can I just use resin to seal it?

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