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Discussion starter · #442 ·
It's ok Jason. If you ignore the little troll, maybe she'll stop.

Anyway, just wanted to give a say thanks to Chuck for helping procure some material I needed and teaching me how to work with it.

More boxes coming in the mail this week to get this finished up. Then the pics will come :)
 
Your welcome and I'm glad to part with what little knowledge I can to an enthusiastic learner even though you were 2 hours late!:D Can't wait to see the finished product and hopefully get a little seat time when you get that monster cranked!

And now I owe you a thanks for all of your expertise on my upcoming build!

Chuck
 
Discussion starter · #444 ·
Yeah, my apologies for being late.. See above for Ally's version of how that went...

Anyway, no problem on the ideas, and you'll probably be one of the first ones to hear it :D
 
I'm excited to see these updates. I have a few of my own on the way. I'm wondering how different our installs will be from the last time we met up.
 
Discussion starter · #451 · (Edited)
Alright, so here’s the build log of the biggest car audio project I’ve taken on by myself. This first post will be mostly text, old pictures, and explanations, so if you just want new pics, keep scrolling. As stated on the previous page, changes made are:

1. New subwoofers
2. New sub install
3. New trunk wall
4. New amplifiers
5. Completely new amp rack
6. New wiring
7. Some more flash in the install

To start off, here is what the last completed install looked like:

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Amp rack built by Mark Brooks, ported enclosure for Dayton HO’s built by Ryan Slade. Looked good, sounded good.

When Ally decided on an infinite baffle subwoofer setup in her car, we decided to test her old sub, a DB Drive K3 15D4 against her new Acoustic Elegance SBP-15 in my car while she ironed out the details of her install, which led to this thread: http://www.diymobileaudio.com/forum...ect-install-gallery/118450-thanksgiving-break-ib-install-driver-comparison.html

So after that, the DB Drive sub stayed in my car for a long time, and was used at FreezeFest and SBN, just like this:

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I liked the ability of an IB setup to play so clean and low, so I wanted my next install to include a pair of IB15’s. The Acoustic Elegance ones are incredibly hard to find, so I looked into Fi, Dayton, IA, SSA, Gladen, JBL, Image Dynamics, and probably some others. I had response graphs out the wazoo, and probably any of them would have been a good choice, but in the back of my mind, I still wanted AE subs, so I held off on that purchase for months longer than I intended.

While waiting, I drew up how it should look. I planned on building a wall in front of the subs with a removable grill to protect them, just like this:

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So that takes care of changes 1, 2, and 3.


Fast forward like 3 months to the Spring Fling competition in Tennessee, and my right side amp gets fried. My fault, but that certainly throws a wrench in the gears. They don’t make the MB Quart DSC4125’s I was using anymore. I was planning on switching amps eventually, but certainly not this soon.

Couple fried FETs:

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So quickly to the drawing board, I figured I’d just replace the 2 front stage amps with something that’d be a drop in replacement. But since my accident at the competition was due to the circuit boards being exposed, I decided the next install would have the covers remain on the amps. Then came deciding on which amps to get. I played around with a design involving more Clarion DPX amps to match the subwoofer amplifier that I thought would look pretty cool. I’ve always been more in the “a watt is a watt, amps basically sound the same” camp. But for this one, after some convincing, I decided to try some high end amps after I thought of a way to make them look good too.

After seeing some of the awesome builds on this site, especially those from Bing, I wanted to emulate some of the techniques and design ideas in my own build, doing the work myself, especially now that I have a router, courtesy of Chuck. So that takes care of my reasoning behind changes 4 – 7. There may or may not be some speaker updates coming as well.
 
Discussion starter · #452 ·
After replacing the front sub with the Dayton, I still felt like working on stuff, so I started on the wall that would go behind the subs. The goal was for everything to go together like the previous install without screws so panels could be removed quickly by hand if need be. This piece would be braced between the amp rack on the bottom and the rear center seatbelt mechanism on top.

A few cardboard templates later, and I had this:

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And here it is in the car:

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It was during this that I learned my trunk is not symmetrical at all. The curves on the sides are completely different, and the spots that I used to measure where the cutout would go are obviously not the same difference from the center, evidenced by the unequal spacing of the cutout. Lame.

Take 2: Wall is taller, cutout is taller and narrower, and the side curves fit better. Win, win, win.

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So then a floor piece was cut to cover the wires and brace against the wall and the baffle to support them.

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And it was carpeted:

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The original plan was to have a thin trim ring press fit into the cutout in the wall, and another similar piece covered in carpet and grill mesh that would press fit in the cutout to protect the subs. The stupid trim rings like this gave me fits. I could never cut them to exactly the right size.

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It’d look perfect, but then it’d flex a tiny bit when fit into the cutout since it was so thin. I tried making the grill with a piece this thin as well and it was also too flimsy. I went through about 5 of these rings before I gave up and did it a better way.



Now, back in time again, Ally happened to see the AE IB15’s pop up in the classifieds a few weeks ago, 5 minutes after they were posted. I emailed the seller ASAP and was able to pick them up despite like 25 other people wanting them. Huge victory for my install thanks to her being bored.

So the day I got them, I built a baffle out of two ¾” sheets of MDF screwed and glued together just like my test baffle, except cut much cleaner this time and with nicely countersunk screws. Carpeted on both sides since it’ll be viewable from both sides, and attached to the car using twice as many brackets as the test baffle, as well as additional screws. Sealing was done in the same was before with thick compressible foam, just with carpet over it this time. The baffle is completely sealed, and there is no messy expanding foam in this install.

Here’s the baffle in the car with the subs mounted:

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I love the machined spokes of the sub baskets.

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And from the cabin side, before the beauty panel. These things are huge!

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Big difference from the pair of 10’s that were there before…

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Discussion starter · #453 ·
Some more boring stuff before I get to the cool stuff:

The wall was carpeted and checked for fitment in the car:

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Speaker wire for the subs techflexed and heat shrunk:

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Color coded just like the rest of the wires:

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Now, to go with the black amps that I'd be using, I decided on silver carbon fiber vinyl to provide a nice contrast with the dark equipment and dark carpet. Here it is applied to the trim ring, which I got right this time routing out a portion of the wall on the back for it to fit in:

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Close up of the pattern:

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You'll see more of that stuff later.

Next, it was time for the grill to cover the subs. I used some black diamond mesh grill with around 72% open area. This should breathe enough so that the subs are still IB even when the grill is in place.

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It was cut and attached to another 1/4" MDF ring, then carpeted. Here's a close up from the back:

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To add some visual excitement, I decided to do some raised lettering with the RALLI ///// ///// ART logo. This was painstakingly measured to scale, cut, carpeted, and applied to the grill. Here's the result:

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And here it is pressed into the wall:

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I have some tiny neodymium magnets to use if it won't stay press fit once the 1.79 square feet of cone area starts moving air.

The cool stuff will come next.
 
Impressive

Are you covering the front side so those brackets arent viewable?
 
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