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View Full Version : The future of my trunk....



Frankensuby
04-07-2007, 05:22 PM
http://www.caraudio.com/gallery/2/9/2/8/9/FinalConcept.JPG

This is the design concept I have for my trunk. I already have the box made and it had been installed in my trunk and working for roughly 6 months. I'm running a Xenon 10" dual 2 ohm into a 4 ohm load, running on a sealed volume of .65, and it seems to love it!

The top angled amp is a Phoenix Gold Xenon 200.4 (938 RMS Berthed) and is HUGE. 22 inches in length, and was really hard to even make fit beside the sub box. The amp weighs roughly 20 pounds. This will be running my current Type-R components in the front, and MMC525's in the rear. I'll be sending 100 RMS to the front, and 85 to the rear.

The amp on the bottom just will squeeze in underneath the top speaker amp. I have a Xenon 600.1 (821 RMS Berth and Bench) to push the subwoofer. My biggest fear is that my shelf for the top rack won't be strong enough and will break, falling down on the bottom amp.

The colors added to the picture represent what I'm aiming for when all is done. I'm painting everything with a dark gray that has a high contact of fine flake in it, then running some clearcoat onto it.

So, what do you guys think? Do you think the shelf might not be able to handle the weight under heavy bumploads? (I drive a Subaru, and we have fun backroads ;) ) Overall thoughts?

I will provide more pics of the trunk later, but at the moment I am at work, and they have photobucket.com blocked.

azbass
04-07-2007, 05:45 PM
um, uck

blackbonnie
04-07-2007, 05:47 PM
i like the design, i would go with 1 inch board for the 200.4, or just make another flat rack about 3 inches above the first amp (to give it room to disperse heat). but if you could get it sturdy enough to hold and not break wherever you go, i wouldnt hesitate on this design.

Frankensuby
04-07-2007, 05:48 PM
um, uck

Que?5

CRAZYCORNUTS18
04-07-2007, 05:48 PM
i dont like that big *** gap is it even needed?

CRAZYCORNUTS18
04-07-2007, 05:49 PM
it cant got horizontl?

W8 a minute
04-07-2007, 05:56 PM
um, uck


x2

Frankensuby
04-07-2007, 06:00 PM
When I get home at 9:45 I'll try to remember to throw you guys some of the pictures. The problem with room is that I'm trying to fit this inbetween my rear strut towers to keep some usable trunk space up. Basically, if this works (will know by the end of the night) I will have increased my multichannel amp power by near 400% without using an extra inch of floor space. :D (A6004T Audiobahn to X200.4)

I have a false floor being siliconed into the trunk underneath the amp and sub. I already worked it so that it sits level over the bumps on the floor of the trunk.

And , I'm probably working with clearances of .25-.75 inches on the amps...Real close. I'm worried I miscalculated my cuts.

I'll try to find some pics... Once again, any reasons for the negatives; as in why...looks..? I'm not going for glam, just nice functional, compact with decent air cooling. No crazy plexiglass panes and crazy lights.

THUNDERBIRD
04-07-2007, 06:07 PM
its not a bad design, but i dont think the .25-.75 inch is enough clearance for all that. you could angle the sub amp too. what i would do because your worried about strength is fiberglass that top shelf ontop of 3/4" mdf 2-3 layers will give you the strength

W8 a minute
04-07-2007, 06:08 PM
. Once again, any reasons for the negatives; as in why...looks..?

Yes, looks. I can understand not wanting to lose space but there has to be a better looking way to lay that out. It's not the lack of plexi or lights but the design doesn't "flow"

Honestly, it looks like you took a corner too fast and all the crap in your trunk ended up in one huge pile.

Prowler573
04-07-2007, 06:09 PM
How about this ~

Instead of having the one amp flat and the second amp at that odd angle above it have both of them more or less standing vertically one in front of the other? Where one amp would basically be hidden from view due to the other amp standing in front of it.

It would be problematic to access any of the settings on whichever amp that is behind the other but assuming you know how to properly set it up you won't need to continually be able to get to it anyway.

Frankensuby
04-07-2007, 06:17 PM
^^^ I was actually tinkering with that idea. I really wanted to make both amps on an angled shelf towards the rear, so that you could see both amps straight on. The multichannel is just to wide to fit in between the sub box and strut towers without a diagnol. But unfortunately, my room is VERY limited, and by that, I mean I'm working with .5 inches ~ just to fit the amps inbetween. I am using some stuff called 'Lexel' that is supposed to be excellent for high strength applications that need a small amount of flex. It's thick, so it's easy to apply.

As far as the looks, very understandable. I know that it looks akward, but unfortunately I have no extra room to even have them slant towards the rear. It is very tight situation I got myself into when I fiberglassed the enclosure to fit the left corner strut tower. I can make it work, it just won't be a showmans job. I can deal with that for having clean sound and room to throw my sports equipment in :)

Frankensuby
04-07-2007, 10:29 PM
http://i43.photobucket.com/albums/e385/scubaruimpreza05/HPIM0252.jpg
http://i43.photobucket.com/albums/e385/scubaruimpreza05/HPIM0253.jpg
http://i43.photobucket.com/albums/e385/scubaruimpreza05/HPIM0254.jpg

Well, all did NOT go according to plan. The amp is too long to run the other one underneath and run the long one diagnol. I took pics to show you what type of spaces I'm working in.

I'm thinking of laying the Mono as shown there, but laying it so that it is at the same degree as the speaker amp above it. I'll also be adding an actual shelf for the X200.4, if I do this setup.

My only other option is to dedicate a corner for the amps. :(

Frankensuby
04-07-2007, 11:32 PM
Ok, new twist... are there any things I should worry about, if my amps are mounted as such....
http://i43.photobucket.com/albums/e385/scubaruimpreza05/HPIM0257.jpg
http://i43.photobucket.com/albums/e385/scubaruimpreza05/HPIM0256.jpg

One upside down, one right side up, mounted to 1/2" plywood shelf.... Anything that could go wrong?

dyabolical
04-07-2007, 11:34 PM
Looks like you should be looking into a false floor or something of the kind.

W8 a minute
04-07-2007, 11:51 PM
There's enough room to mount BOTH of those amps upside down to your rear deck above the sub box. Make a small strip of carpeted wood and they would be completely hidden. Then fiberglass a box into the corner of your trunk and you would lose almost zero space.

Frankensuby
04-07-2007, 11:53 PM
It's sitting on a piece of MDF that I'm going to be anchoring to the floor of the trunk, and mounting off of.

Frankensuby
04-08-2007, 12:03 AM
I can't mount to the rear deck because nothing is even, it's stamped steel, and there are various electronic running across it. I was looking into it, but it is alot more work than needed. I also don't like running the amps into metal for odd noise issues.

I'm going shopping tomorrow ;)

uhoh45
04-08-2007, 07:30 AM
just cut out a piece for the other side where the amps are mount it to the box and put the amps on that like this

http://i2.photobucket.com/albums/y31/uhoh_45/HPIM0253.jpg

CRAZYCORNUTS18
04-08-2007, 07:32 AM
:iagree: and i dont think its good to mount an amp upside down

CRAZYCORNUTS18
04-08-2007, 07:34 AM
or even a false floor with some plexiglass to see the amps

W8 a minute
04-08-2007, 07:57 AM
:iagree: and i dont think its good to mount an amp upside down


Xenon amps are "upside down" from the factory. The top, silver part is just sheet metal while the bottom is the heatsink. Xenons are also fan cooled.

CRAZYCORNUTS18
04-08-2007, 07:59 AM
Xenon amps are "upside down" from the factory. The top, silver part is just sheet metal while the bottom is the heatsink. Xenons are also fan cooled.

o didnt know that learn something new everyday:naughty:

Frankensuby
04-08-2007, 09:23 AM
just cut out a piece for the other side where the amps are mount it to the box and put the amps on that like this

http://i2.photobucket.com/albums/y31/uhoh_45/HPIM0253.jpg

Le sigh...


I've explained this before. The X200.4 is roughly 23" long, way too long to lay it like that, or trust me, in a heartbeat, it would have been done.

Also, both amps are jusy shy of 11" wide (depth, if you will) which gives me a combined 21-22", whereas my trunk at the back gives me 16" to play with. Not to mention that nast strut tower, and the corners I am working around.

I don't think either of these amps will ever heat up, as I'm only using 500 of 821 Benched RMS watts on the X600.1, and 400 watts of benched 938 RMS watts from the X200.4, for now.

My only concern is chassis twisting on the X600.1.

uhoh45
04-08-2007, 10:52 AM
by the looks of it u can put the big amp infront of the box and mount other one behind it or somthing

CRAZYCORNUTS18
04-08-2007, 10:57 AM
yea but he say he only want them in the way back he said he needs the rest for trunk space. like stated above you could put a false floor it wouldnt be thick considering the amps are skinny and bam amp mounted and you got trunk space

uhoh45
04-08-2007, 11:00 AM
ah i didnt see that but yeah like he said false floor

THUNDERBIRD
04-08-2007, 04:13 PM
i havent read much of the posts so you could have already shot this down. but it looks like it is time for a false floor, or build new box to work with what you want.

Frankensuby
04-08-2007, 04:44 PM
False floor is already made so that everything sits level :D I've had a 'loose' false floor that wasn't anchored down by anything but its' own weight, but this time I'm using a high strength silicone to glue it into the floor. I figure it should have flex to handle vibrations and put to rest any resonation issues.

I did alot of the fab work today, but my cuts **** and stuff is not sitting as flush as I'd like it too. I predrilled alot of holes, and am going to countersink them all, and then run some body filler/wood filler to hide them. Then I'm going to use silicone to glue the boards together ontop of the screws, and flush up some of the boards by filling in the cracks.

I think, the only thing I might need to install after the unit is together is the big amp ontop...I might not have clearance to install it in one fell swoop.

We shall see :)

CRAZYCORNUTS18
04-08-2007, 04:47 PM
no plexi to see amps?

Frankensuby
04-08-2007, 04:54 PM
Amps aren't going to be hidden. You'll be able to see the output side fine. I'd love to plexiglass, but I'm doing all of this for cheap right now. I just need to install it and get it up and running right now. If I ever really want to make a super fancy enclosure + rack, I'd use MDF as a structure and just fiberglass the entire area. That is a bit down the road though. I just don't have the money for that now. This project cost me about 30$ total, and I might be able to return some of the stuff I bought haha.

CRAZYCORNUTS18
04-08-2007, 04:57 PM
Amps aren't going to be hidden. You'll be able to see the output side fine. I'd love to plexiglass, but I'm doing all of this for cheap right now. I just need to install it and get it up and running right now. If I ever really want to make a super fancy enclosure + rack, I'd use MDF as a structure and just fiberglass the entire area. That is a bit down the road though. I just don't have the money for that now. This project cost me about 30$ total, and I might be able to return some of the stuff I bought haha.

better to get too much then too little

Frankensuby
04-08-2007, 05:05 PM
better to get too much then too little

Exactly. And since money is fairly tight, I'd err on the side of too little, and I'd be screwed. I'll end up buying 5 gallons of resin and necessary reactant, and a crap load of vaseline/wax and a few rolls of masking tap, and have at it for a few hours :fro:

Thats a good 200$ plus situation though:eek:

CRAZYCORNUTS18
04-08-2007, 05:07 PM
sounds about right lol