F-150 Evolution

[Bill Metts 0]

This is a compilation of the evolution of designs I put my poor truck through including the latest incarnation of my 04 F-150 extended cab. Basically it is three build logs sandwiched into one. The first one was just an asinine monstrosity. 25 cubes, took out the back seat it was awful, in fact the only decent thing about the enclosure is the drop in port design. The second was my first attempt at a cut through design. I actually got the major points right on the first try. The cut through came out well, as did the box and it did not leak. The amp racks were awful and I ended up blowing two 3000Ds because the amps were mounted directly to the enclosure, but that is what experience will teach you. The last evolution is the current and hopefully final build. This is my first foray into using resin to coat the inside of the box, or with fiberglass at all for that matter so I know its kind of sloppy, but the end product came out rather nicely. This takes care of the majority of the build save a few tweaks like new paint due to hail damage, a leather conversion, wheels and tires, a new head unit and replacing the BTLs with Nightshades (UPS actually broke the six spoke basket on one of the Nightshades the only thing holding it together was the glue Jacob used to bind the surround... that speaks to the level quality Jacob holds himself to but that also takes a level of carelessness that is usually seen in those citizens with less than 80 IQ points... If you are reading this and you handled my subs on the way to MD you friggin suck ass... but anyway). Feedback and pointers are welcome.

Edited October 20, 2008 by Fi-150man

[P-Dizzle 1]

Looks like fun but I am confused about the deadener getting installed over top of plastic.

[Bill Metts 0]

Yeah... I reapplied deadener to those areas later without the plastic. Like I said, it was a really shady build in the begining. Not that it is superb now, but it is definitely an improvement.

Edited October 20, 2008 by Fi-150man

[P-Dizzle 1]

That is a crazy install. What are the odds of that change staying in place?

[lithium 358]

how many cubes in the box and whats the tune?

[Duran 387]

^What the hell is that?^

Edited October 20, 2008 by Duran

[stealth 113]

that my friend is called CONTACT.

[coobies5 43]

rofl, i was going to ask the same thing

[slim2fattycake 85]

is there going to be sealing around the box to the back of the cab? nice build.

[Bill Metts 0]

is there going to be sealing around the box to the back of the cab? nice build.

I know it's hard to tell, but believe me it is there... in spades. No air or water leaks. If it wasn't, the way the back of the cab is stamped, it would be very apparent. The cab tapers in about 2" at a very severe angle. I am trying to build a piece to go behind the seat to clean up the look though.

Edited October 20, 2008 by Fi-150man

[Bill Metts 0]

how many cubes in the box and whats the tune?

The first box was 25 cubes tuned to 51 hz port out and 30 hz port in.

The second box was a proto for the last box, it was 15 cubes tuned to 35 hz.

The newest box is exactly 15 cubes before displacement... built on the Golden Ratio down to the millimeter after glassing. The tune is 30 hz.

Edited October 20, 2008 by Fi-150man

[slim2fattycake 85]

whats the golden ratio?

also, have you listen to those 6.5s and the 6X8s? tell me what you think of them.

[Bill Metts 0]

I personally think that the mids and highs I have are the best bang for your buck. They cost me $150 total, they are crystal clear and scream. Don't get me wrong I really lack in the mid bass area, but anything I want to play sounds pretty good... bagpipes, jazz, rock, classical... movies sound better than any home theater. The Golden Ratio is a set of plug ins for HxWxD. It is based on the ratios that the human body forms with, ie if you take your fingers the bone up to the first joint is approx. .6 of the second joint and the third joint is 1.6 of the second joint. Your arms and legs form in a similar fashoin for the most part. Oddly enough I did an experiment in high school (a long time ago in a galaxy far, far away) before I knew it could be applied in an acoustic apllication that showed it applies to leaves, tree limbs, even the legs and bodies of bugs. They are .6 to 1.0 to 1.6... in most of the enclosure design literature I read it was said to be the most efficient way to design a cubicle enclosure... to help prevent standing waves, help with port velocity that kind of stuff. It is kind of impractical for vehicle use, but use it for yourself if you can and you be the judge. Hope that wasn't too wordy.

[lithium 358]

interesting... ill have to try that on my next box if i can...

[Aaron Clinton 2,372]

Great choice in amps, subs, and processors!