Extended Cab with 3 15’s
Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=64437
Printed Date: April 24, 2024 at 1:32 PM
Topic: Extended Cab with 3 15’s
Posted By: M&mfabrications
Subject: Extended Cab with 3 15’s
Date Posted: October 15, 2005 at 3:22 PM
I haven't been here for a while cause I have been busy with work but I finally got enough time to start a new project. This is the fourth different setup I have had in this truck so far. I just started saturday so not much except for frame work at this point. The box will be ported and house three 15's that are sunk down into the larger rings seen in the pictures. I didn't want to redo everything for my airbag gauges and switches so I am tying this box in with the existing console. The first couple of pics show the rings before they were set in place. I was just getting a feel for how they would go. https://img.photobucket.com/albums/v689/townzenm/DSCF2921.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF2922.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF2928.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF2932.jpg
Replies:
Posted By: Alpine Guy
Date Posted: October 15, 2005 at 6:45 PM
Everything looks amazeing, yet again....all except that UGLY BASS KNOB...change that NOW.
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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Posted By: abovestock
Date Posted: October 16, 2005 at 3:32 AM
That box is amazing, you seem to have vision when everybody elese needs glasses as my friend says. Nice work and please keep the updates with pictures coming so we can drewl.  ------------- Why do you ask if I ate paint chips when I was younger?
Posted By: jlord16
Date Posted: October 16, 2005 at 4:15 AM
koolas man, i love 15" LOL the bass from that will be sooo sweet
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Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*
Posted By: rustyspring03
Date Posted: October 16, 2005 at 4:27 PM
what 15s are you running in there? that looks like its got some sweet potentials
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Rusty Spring
98 s10 reg cab
Type R 12 Inverted between seats
Type R 6.5 for doors
Type S 5.25 on the dash
Alpine MRD-M605 mono
Alpine MRV-F345 4ch
Posted By: M&mfabrications
Date Posted: October 16, 2005 at 7:02 PM
My buddy got his truck broken into and his head unit and amps were stolen so I got three of his four punch stage 1 15's. I normally wouldn't use 15's, especially these, just because the space they take up but these were practically free so I thought I would give them a try. He had them in a big ported box and they sounded decent.
Posted By: jt73
Date Posted: October 17, 2005 at 9:41 AM
very nice-cant wait to see how they look when they're done...
Posted By: lathan
Date Posted: October 19, 2005 at 6:00 AM
yea, i dont think tweeters will fit in those...lol. Im drunk. Nevermind.  ------------- Lathan Hites
"I'm sorry, without a credit card I'll be requiring a stool sample"
Posted By: King_Midas
Date Posted: October 19, 2005 at 7:17 AM
I had that same bass konb for my RF amp. what I did with mine was I took the internals out, drilled a 1/4" hole in a pop-out panel in the dash, then installed it there. very discreet and always within reach
Posted By: TCalYen
Date Posted: October 19, 2005 at 11:34 AM
M&mfabrications wrote:
I haven't been here for a while cause I have been busy with work but I finally got enough time to start a new project. This is the fourth different setup I have had in this truck so far. I just started saturday so not much except for frame work at this point. The box will be ported and house three 15's that are sunk down into the larger rings seen in the pictures. I didn't want to redo everything for my airbag gauges and switches so I am tying this box in with the existing console. The first couple of pics show the rings before they were set in place. I was just getting a feel for how they would go. https://img.photobucket.com/albums/v689/townzenm/DSCF2921.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF2922.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF2928.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF2932.jpg
Just curious as to how you got the appropriate volume measurements and port length calculations? I wouldn't know where to start. ------------- TCalYen
Posted By: M&mfabrications
Date Posted: October 19, 2005 at 12:10 PM
So far I just used rough measurements to get the volume in the ballpark. I am quite sure that I will have more than I need once I get finished so I will add some wood to the inside to get the volume back to where I want it. As for actually measuring the exact volume I am not sure yet as to what I will do. I may use packing peanuts or even fill it with water once its sealed good. I used WinISD to determine the port length and size.
Posted By: Alpine Guy
Date Posted: October 19, 2005 at 4:35 PM
What i do is wrap in it fleece once you get your design, ,then do the packing peanuts thing.....then build your port......re measure...then fiberglass.
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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Posted By: M&mfabrications
Date Posted: October 20, 2005 at 7:51 AM
Thats probably what I will do. I am definitely waiting until I know the volume before I add the ports.
Posted By: the8thorder
Date Posted: October 21, 2005 at 10:03 AM
how many ports are you using? running them right next to the front seats (between the door and seat) and moulding them so they look factory would look sweet
-------------
Michael Jordan
Posted By: M&mfabrications
Date Posted: October 21, 2005 at 3:48 PM
8thorder thats a good idea but I'm not going to do anything fancy with the ports. I am going to have two and about the only place I can easily put them is behind each side speaker pointing up towards the top. I got it skinned today and am starting to glass it now so I snapped a couple of pictures. https://img.photobucket.com/albums/v689/townzenm/DSCF2948.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF2947.jpg
Posted By: TCalYen
Date Posted: October 22, 2005 at 1:16 AM
M&mfabrications wrote:
Thats probably what I will do. I am definitely waiting until I know the volume before I add the ports.
Hmmm... sounds good ... definitely take tons of pictures and post them up. ------------- TCalYen
Posted By: abovestock
Date Posted: October 23, 2005 at 1:56 AM
Coming along nicely, can't wait to see the finished project.
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Why do you ask if I ate paint chips when I was younger?
Posted By: oxygen65
Date Posted: November 19, 2005 at 8:21 PM
looks good i wanna see it when its done
Posted By: M&mfabrications
Date Posted: November 21, 2005 at 9:44 AM
Posted By: OCURIEL
Date Posted: November 26, 2005 at 5:31 PM
Your work is top notch!  Keep the pics coming.
Posted By: M&mfabrications
Date Posted: December 07, 2005 at 7:18 AM
I finally got all the glasswork done last weekend and this weekend I will start smoothing it out. Hopefully I will have some new pictures on Monday.
Posted By: j68rh
Date Posted: December 10, 2005 at 4:28 PM
what kinda fabric is that you used??
Posted By: M&mfabrications
Date Posted: December 12, 2005 at 7:38 AM
I don't know what kind of fabric it is. I just went to the fabric shop and found something cheap that would stretch in both directions and that was thick enough to hold the resin well. I started smoothing it out over the weekend and hope to have it ready for paint over the Christmas Holiday. https://img.photobucket.com/albums/v689/townzenm/DSCF3001.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF2999.jpg
Posted By: ragoal12
Date Posted: December 12, 2005 at 5:14 PM
very nice.. i like that alot... but that is alot of bondo and evercoat!!!! my question is why the did u smooth the area going down into the cone????
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S.O.B custsoms.. South Omaha, Nebraska
Posted By: placid warrior
Date Posted: December 12, 2005 at 6:03 PM
the subs are gonna be mounted on the lower recessed rings not the top ring so that whole area "going down into the cone" is gonna be visible.
Posted By: Poormanq45
Date Posted: December 13, 2005 at 12:05 PM
placid warrior wrote:
the subs are gonna be mounted on the lower recessed rings not the top ring so that whole area "going down into the cone" is gonna be visible.
I'm wondering why he did it that way. Anyone care to calculate what frequency is going to be amplified by that HORN! Looks excellent man. I'm wondering though, why did you use so much bondo? I used a ton on my FG enclosure, but that was only because it was a master to be copied. Was it really that un-smooth? -------------
Posted By: ragoal12
Date Posted: December 13, 2005 at 8:26 PM
placid warrior wrote:
the subs are gonna be mounted on the lower recessed rings not the top ring so that whole area "going down into the cone" is gonna be visible.
ok now it makes sense.. at first when i looked at it i was wondering about it... not sure if i like the horn design.. but none the less its clean and done right so i appreciate it and give lots of credit to the project very nice man.. hit that with some nice dupont paint and load in the audio gear!!!! ------------- S.O.B custsoms.. South Omaha, Nebraska
Posted By: M&mfabrications
Date Posted: December 14, 2005 at 9:34 AM
The recessed areas ended up being a little more prominent than I had intended but I thought it still gave it a good look that I haven't really seen before so I like it. And to answer Poorman no it wasn't that unsmooth at all and when I am done most of that Rage Gold will be dust on the floor. I just got a little excited with the filler. Right now the plan for paint is black with realistic style blue flames.
Posted By: pajokijr
Date Posted: December 14, 2005 at 10:53 AM
very nice...original desgin.just wondering how many layers of glass did u use?
Posted By: M&mfabrications
Date Posted: December 14, 2005 at 12:42 PM
I'm not real sure how many I would guess about 7 on the top and maybe 5 on the more curved areas. I just kept adding until it passed the thumb test.
Posted By: pajokijr
Date Posted: December 15, 2005 at 6:41 AM
nce nice...i heard about that thumb test on hear and tried it out.i was definitley satisfied with the results..great design though man
Posted By: vwtoby
Date Posted: December 24, 2005 at 4:41 PM
whats the thumb test :P looks awsome
Posted By: pajokijr
Date Posted: December 24, 2005 at 8:28 PM
when u push on the "sections"of fiberglass with ur thumb.if u u have good rigidity than u have the right amount of layers,but if it is still flexable then its too thin.maybe a little more elaboration from someone would help,lol,im not good at describing things.
Posted By: jlord16
Date Posted: December 24, 2005 at 8:37 PM
You use your thumb to apply pressure to sections of fibreglass, if it flexes then its going to flex if air was pounding against it from a sub. It it dosnt flex it usually all good. You should be able to stand on ur fibreglass boxes aswell. My last sub box could hold about 80Kg or aboout 160lb of weight (me standing on it) without even flexing so i knew it was going to be heaps strong
-------------
Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*
Posted By: M&mfabrications
Date Posted: January 03, 2006 at 12:49 PM
Well I didn't get done sanding over the holidays as I had hoped but I am still working on the box and as soon as something else exciting happens I will post some new pics.
Posted By: dragon51
Date Posted: January 07, 2006 at 4:40 AM
Looking good
Posted By: jfunk06
Date Posted: January 07, 2006 at 4:26 PM
Yeah, i was alittle lost with the srrounds. But its a real unique look i haven't seen before. Good work!
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Govenor of Jimcinati
93' GMC Safari XT
Posted By: M&mfabrications
Date Posted: January 12, 2006 at 11:47 AM
A couple of new pictures, not much to see. I still have to finish smoothing the inside part of the cones. That area got kind of wavy since I had to glass it from the outside. I am going to paint it black so I have to get it really straight. https://img.photobucket.com/albums/v689/townzenm/DSCF3052.jpg https://img.photobucket.com/albums/v689/townzenm/DSCF3049.jpg
Posted By: spootydlux4
Date Posted: January 13, 2006 at 12:44 AM
damn that thing is huge, makes those 15s llook small. but its going to be sweet, your work is awesome
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blah blah blah blah
Posted By: youngone
Date Posted: January 13, 2006 at 10:01 AM
that is vary different design. im gessing that you made it so that the sound that comes out the outside is reflected in the derection of the dish shape very ingeniuse. good use of space and shape. brilliant! Aaron ------------- Want to know some good equipment- JL,Adire Audio,Mcintosh,Brax,Helix,Eclipse,JBL,RE,Dimoand Audio,Zapco, pritty much anything DYhon,Forbidden recommend
On the12volt you give some info and you get in
Posted By: M&mfabrications
Date Posted: January 13, 2006 at 10:59 AM
Youngone your'e giving me too much credit there. I just thought it would look good. I am sure it will have some effect on the sound but I doubt it will be noticeable.
Posted By: toolinmaine
Date Posted: January 19, 2006 at 9:30 PM
Hey man it might be kinda sweet lookin if you just cleared it like that. It would give it a camo look. Just a suggestion. That is one bad *** box. It might be kinda cool to airbrush some ghost flames on the cones youve fabbed. Thats one sick box.
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ERIC ANDERSON-NOSREDNA CIRE
Posted By: youngone
Date Posted: January 19, 2006 at 9:52 PM
I'm giving you the credit for a reason not gust cause want to. that was a brilliant way to design a box. that extra dip that you have formed around the subs cone will reinforce the sturdiness around the area that is going to be flexing the most. another thing is that if you do it that way you can put some kind of fabric over that dip that goes down to the sub. and make it look like there isn't even a sub there and the only way to now is when it is playing and the fabric will move in and out in unison with the beat. if you do do this you can get some really cool fabric out there in cool colors to. make sure it lets air through it but still covers the area well, so you cant see the subs. but if you are looking to do something else go right ahead that design gave me that idea so i though i would share it. that design is brilliant!!!!!!!!!!!
Aaron  ------------- Want to know some good equipment- JL,Adire Audio,Mcintosh,Brax,Helix,Eclipse,JBL,RE,Dimoand Audio,Zapco, pritty much anything DYhon,Forbidden recommend
On the12volt you give some info and you get in
Posted By: mustangfoo
Date Posted: February 01, 2006 at 6:33 PM
man that box is looking sick as **** man!!! I am looking forward to seeing the finished product. Keep up the good work ! ! !
Posted By: HIGHvoltage77
Date Posted: February 04, 2006 at 10:18 AM
Box looks alright.The upper rings should have been hit with a roundover bit ,inside and out.Would have given it a lot better look.I think you are going to have some cancellation issues with youre subs firing in totally different directions.And you better add about 10 more layers of matt to that thing,or you will watch it dance.
its huge ,but all in all it looks good.Keep the pix comin.Im doing somthing simalr in a 88 Z24 with 6,15s
Posted By: jlord16
Date Posted: February 06, 2006 at 6:19 AM
Shudnt the subs firing in different directions reduce cancellation as opposed to subs firing when they face eachother
-------------
Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*
Posted By: M&mfabrications
Date Posted: February 06, 2006 at 2:41 PM
Jlord I would tend to agree with you that because the subs are all pointed in completely different directions that cancellation will not be a concern and even if there is any I doubt it would be of a significant level to be noticeable.
Posted By: dstang24
Date Posted: February 20, 2006 at 12:17 AM
They are not facing eachother <180 degrees>, therefore there is no chance of cancellation. On top of that, the wavelength of sub-bass frequencies is very long (usally over 15-25 ft). This means that the two speakers facing eachother must be about half the distance apart compared to the wavelength at the Fs of the speakers to cancel out, if I'm thinking through this properly. Therefore the speakers would have to be sepparated by 7-15ft at least. Someone correct me if I am wrong. It's all about nodes and ant-nodes in the audio signal... ------------- Team Edge Audio
Posted By: toolinmaine
Date Posted: March 15, 2006 at 11:24 AM
This post kinda went dead how about an update. New pictures?
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ERIC ANDERSON-NOSREDNA CIRE
Posted By: M&mfabrications
Date Posted: March 15, 2006 at 2:45 PM
Unfortunately I have been swamped at work so I haven't had much time to work on it, but I am going to finish it eventually. I did do a little more sanding last weekend and it is almost ready for paint.
Posted By: younguru
Date Posted: March 23, 2006 at 7:04 PM
looks killer can't wait to see it in paint what kinda paint scheme u going for ------------- ALEX
Posted By: M&mfabrications
Date Posted: March 24, 2006 at 12:15 PM
Black with realistic blue fire.
Posted By: younguru
Date Posted: March 24, 2006 at 4:57 PM
Nice the flames gonna come out of the sub ports or u just gonna bring them up from the bottom ------------- ALEX
Posted By: the rah
Date Posted: May 20, 2006 at 10:18 PM
dude looks great but my ? is how does it sound? because it does not look like they will have enough air space let it be known. ------------- rah2son
Posted By: M&mfabrications
Date Posted: May 23, 2006 at 9:45 AM
There is 7ft^3 of air space. Well I took such a long break from working on this box that I think I have decided not to use it and to instead go with three 12's. I have an Infinity Kappa Perfect 12VQ now and I think I am going to get two more and do a much simpler box instead. If I change my mind and decide to finish this box I will post some photos.
Posted By: kaace
Date Posted: May 30, 2006 at 12:46 AM
aw man...i thought it looked great...who ever thinks he sold it for some decent cash raise their hands!!!!....
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"it was a rhetorical question...what have i told you about thinking"
Posted By: cutlass013
Date Posted: July 29, 2006 at 12:05 AM
so so sad
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