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First Build - 6th Order Trunk on 2k


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I had a plan to do a budget build and then blew my budget.

This is the first build I have ever done, never used fibreglass or done carpeting or anything audio related so some things are a bit rough :P

Even so, pretty happy how it turned out.

Was originally designed as a 4th order tuned at 64hz but designed in a way so I could convert to a series tuned 6th

The 6th order conversion I am running now sacrificed a little bit around the 60hz range for alot of gains down low. It dips down to 19-20hz pretty reasonably now.

It is currently tuned at 27hz and 64hz respectivly.

Outer @ 2.2 cu F

Center @ 2.6 cu F After displacement.

I have a high output alternator sitting on my back seat that should solve my voltage issues (Current alt is on its way out)

I would guestimate im getting about 1200-1300 watts to the woofers due to my cooked alternator.

Bits

4x 12" Pioneer TS-W3003D4

2x GM-D9601

1x GM-D8604

1x Pair Polk MM6501

1x Pair Pioneer TS-A6995R

Optima Yellow top (XS Power was just gonna be too much to ship)

SHCA 1/0 OFC

Total cost was around 4000 of my Australian Paceos.

Parcel Shelf

http://imgur.com/a/bcYNv#0

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Door Pods

http://imgur.com/a/efPC0#0

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4th Order Box build

http://imgur.com/a/soO5K#0

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6th Order Conversion

http://imgur.com/a/4rmPl#0

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Electrical

http://imgur.com/a/OiHnM#0

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There is room for 2 extra batteries up the back which will eventually happen.

The new alternator will be dropped in soon.

If you leave it till the last minute, it will only take a minute.

Build Log - 4x12's Trunk Firing 6th

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Interesting design choices. Can you provide some details how that 4th is now a 6th, I'm a little lost on what you did there.

Also, since it is a 6th order, by the very nature of a 6th, I wouldn't think you'd be able to hear anything around 20 Hz due to steep slope and rapid drop off.

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The outer chambers are ported to the interior chamber via that port at top. Its handles down to 22-23hz pretty nice and starts to roll off down to 19hz (Where i would start losing cone control if i tried going lower)

I seem to have some pretty reasonable cabin gain, also it loves having the windows open for the lows.

Edit: Unfortunatly I dont have alot of pics of the 4th to 6th conversion.

If you leave it till the last minute, it will only take a minute.

Build Log - 4x12's Trunk Firing 6th

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Looks pretty cool.
You'd probably get more attention on your setup when the pics are linked properly :)

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  • 2 weeks later...

Got a few extra pics of box from interior of the car.

I would like to seal the back from the front of the car, but im not entirely sure how to go about it.

I would guess ill just silicone up the power runs and then im not too sure... some good ideas would help me a lot.

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http://imgur.com/a/PfsAS#0

If you leave it till the last minute, it will only take a minute.

Build Log - 4x12's Trunk Firing 6th

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  • 1 month later...

Been pretty busy so haven't been able to do much at all, but finally got around to slapping a bit of dampening up the back. So many rattles have been squashed finally.

Now I have to prepare to do a bit of work up the front preparing to install a VM-1 OD-1 and LC1 which im pretty keen about.

Still need to finish sealing front to back have some good ideas of how to do it now. Just need the time.

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Sorry for the potato quality pictures, it was night.

If you leave it till the last minute, it will only take a minute.

Build Log - 4x12's Trunk Firing 6th

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can you post them like this so I dont have to open 20 windows to see your pics?

I clicked embed on your link then right clicked copy and pasted

if you cant or dont want to do it like this that is fine thanks for sharing anyways and I like that port I wish it was painted!

FwmU0s5l.jpg

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Yeah sure, was just trying to keep things in mah post clean. Ill start going thru and fixing that up :)

Edit2: Doesn't look like I can use embed function, probably Iframe/JS restrictions.

I too wish the port was painted, it probably will be soon.

Edit:

If you leave it till the last minute, it will only take a minute.

Build Log - 4x12's Trunk Firing 6th

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