PDA

View Full Version : 96 Blazer-- 2 18's budget build



PSturmer
06-28-2013, 04:26 PM
Budget is $2400. System goal is to slam on music and have the end result look extremely clean.

Equipment:
2x 18" HDC3's SoundQubed
2x 2200 watt amps Sound Qubed
50' Cadence 0 gauge
2x C&D g31 batteries
Pioneer 8400 deck

Box:
10-11 ft^3 @ 35 Hz
4x 6" hand made flared ports
back seats stay in
box built within vehicle due to its prohibitively large size
designed with a pencil and a TI-89

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02150_zpsf7162d61.jpg

Side panel was in the way so it was cut out. Carpet will be used to cover this up.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02151_zps955c9a4c.jpg

Starting of the box. Everything at this point is just with screws.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02152_zps94141e70.jpg

The port flares will be cut using a 1.5" radius roundover bit.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02149_zpsee87f8eb.jpg

Three layers of wood were glued up, which will soon be cut using the above bit. They will be used for the internal and external flares for the ports. 6" PVC will be used as the port tubes.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02153_zps7a3d250c.jpg

C&D batteries model UPS12-370R. They were benched at about 1000 amps cranking and were $80 each from the local interstate distributor. At a later date a new alternator and front battery will be installed.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02155_zps0f00b52c.jpg


The equipment arrives soon and I expect to have this build completed by the end of next week.

big boom crew
06-28-2013, 04:53 PM
tuned in

98GCLimited
06-28-2013, 05:11 PM
**** you know car audio is getting crazy when $2400 is a budget build. Should get pretty loud and that roundover bit is pretty sweet.

PSturmer
06-29-2013, 08:01 PM
Routed out the internal flares today. The 1.5" radius roundover bit worked well to create the large flares. Even with a 2 H.P. router it was struggling.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02158_zps23014e7f.jpg

The other side is inset to accommodate the 6" PVC.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02157_zps187dd96a.jpg

hispls
06-29-2013, 08:26 PM
What did that 1.5" roundover bit set you back?

I.v
06-29-2013, 09:35 PM
Nice system

PSturmer
06-29-2013, 10:03 PM
What did that 1.5" roundover bit set you back?

They normally retail for around $150.

PSturmer
06-30-2013, 09:51 PM
The entire bracket to hold the jack was removed to provide more room for the box. Carpet was also added. The exposed metal shown below will be covered by the box.
http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02162_zps6268c895.jpg

Today we also experimented with different paints to use on the flared ports. Since this is the internal set of flares, anything we do to will not be seen from the outside. Red seemed to turn out the best.
http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02161_zps10f6b4b0.jpg

The box will take up the entire width. Cardboard was used to create a template.
http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02159_zps0dce9382.jpg

Work was done on the box design. Shown is a side view, with the left being towards the rear of the vehicle. The calculated volume is approximately 12.3 ft^3 before port displacement. Once sub displacement is known, a more refined calculation of the volume will be done, which is needed to calculate the port length.
http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02166_zpse70f1c86.jpg

The reason for the 45 degree slant of the back of the box is to reduce turbulent flow. Since sudden changes in area are a source for turbulent flow (and energy is lost in turbulent flow), the slant works by gradually changing the area. This is only a theory. One that makes complete sense after taking fluid dynamics, but has yet to be tested in this application.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/boxdesignmethodology_zps6758cab9.png

PSturmer
07-01-2013, 05:23 PM
The side pieces were replaced. Internal volume was too small so the sides were made wider.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02167_zps1cf9e29c.jpg

The back panel was cut and the fit was verified before it is glued up.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02169_zps1de36d78.jpg

One battery will be on each side in pockets. The fit is very snug to fit the amps on top of the box and to maximize space for the subs. we originally were trying to fit 3 or 4 batteries, but that would kick the space below 10 ft^3 for the subs.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02170_zpsce30e124.jpg

Buck
07-01-2013, 05:39 PM
Dang man that box is intricate.

PSturmer
07-01-2013, 10:15 PM
Dang man that box is intricate.

The most difficult part has yet to be made. It would of been nice to have a copy of SolidWorks for this project.

RangerDangerV2
07-01-2013, 10:30 PM
Budget is $2400. System goal is to slam on music and have the end result look extremely clean.

Equipment:
2x 18" HDC3's SoundQubed
2x 2200 watt amps Sound Qubed
50' Cadence 0 gauge
2x C&D g31 batteries
Pioneer 8400 deck

Box:
10-11 ft^3 @ 35 Hz
4x 6" hand made flared ports
back seats stay in
box built within vehicle due to its prohibitively large size
designed with a pencil and a TI-89

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02150_zpsf7162d61.jpg

Side panel was in the way so it was cut out. Carpet will be used to cover this up.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02151_zps955c9a4c.jpg

Starting of the box. Everything at this point is just with screws.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02152_zps94141e70.jpg

The port flares will be cut using a 1.5" radius roundover bit.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02149_zpsee87f8eb.jpg

Three layers of wood were glued up, which will soon be cut using the above bit. They will be used for the internal and external flares for the ports. 6" PVC will be used as the port tubes.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02153_zps7a3d250c.jpg

C&D batteries model UPS12-370R. They were benched at about 1000 amps cranking and were $80 each from the local interstate distributor. At a later date a new alternator and front battery will be installed.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02155_zps0f00b52c.jpg


The equipment arrives soon and I expect to have this build completed by the end of next week.

hey man! I saw this thing at soundset! only reason I remembered was because of the bumper lol. you didnt happen to sit in the DbDesigns black tahoe did you?

PSturmer
07-02-2013, 12:18 AM
For the record everyone it's actually a 1999 Brazzer (Bravada clip). Tonight the rear piece was slabbed up. Tomorrow we cut out the flares.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02179_zps0c5416db.jpg

PSturmer
07-03-2013, 03:13 AM
Today the rear piece for the box was cut out.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02197_zps896d7951.jpg

Flares were made and the PVC tubes were glued in.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02199_zpsf752e142.jpg

The box size is about 10.2 ft^3, with the ports being 21.5" long. The PVC were bondoed in, followed by a layer of glazing putty (as shown in pink).

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02203_zpscaf85330.jpg

PSturmer
07-03-2013, 03:14 PM
Test fit:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02207_zps9ecc53e1.jpg

The fit is perfect.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02208_zps419315f0.jpg

There is 5.5" between port and the back hatch. Enough room for port to be breath, yet close enough to load off the back hatch.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02213_zps1aaac94d.jpg

Equipment came in:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02212_zpsd6aed338.jpg

New amps are taller than the old ones. New one shown on left. Older model on right. Amp rack will need to be slightly lower now.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02215_zps7aaed36d.jpg

Work will continue after this weekend. The build should be finished next week.

PSturmer
07-07-2013, 11:11 PM
Back to work. This evening much of the design was finalized- the big uncertainty beforehand was sub placement on the top of the box. I got to use some calculus on tonight's design work too! There are small details to still figure out, such as bracing and a spot for the bus bars- this stuff I've mostly got planned out in my head.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02216_zps55bd6a5f.jpg

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02218_zps0e3e47a1.jpg

I would have liked the subs to be farther apart for better cosmetic appeal- but the battery boxes restrained this. Everything is a trade off in the design; a delicate balance between performance and cosmetics. When it comes to sacrifices, performance has priority. Any experienced shop can make things look pretty.

Over the next few days much work is still required in order to meet our Thursday deadline. Tomorrow will be a 14 hour day.

PSturmer
07-09-2013, 12:53 AM
Today.....

1. Odd shaped piece of wood. Started with:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02221_zps640e4c80.jpg

And ended with:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02224_zps5beb35c6.jpg

2. Amp rack. Had to drop the sides in order to fit the larger than plan amp.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02220_zps7b8e0e3b.jpg

3. Cut out a brace:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02219_zps82c9b1ea.jpg

4. Box was put together in the vehicle. The base and port assembly were put together in the vehicle, followed by the side pieces and amp rack.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02232_zps6dffeefb.jpg

5. Braces were installed.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02241_zpsb51d05ed.jpg

6. Battery fit was checked. It fits!

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02237_zpsd5d8d4e0.jpg

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02240_zps9e3ca0fc.jpg

7. Power wire was ran.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02243_zps37f61ae5.jpg

PSturmer
07-09-2013, 02:23 PM
Sub Mounting:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02245_zps18f85851.jpg

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02246_zpse2f6f7ed.jpg

Buck
07-09-2013, 02:25 PM
That's dope.

PSturmer
07-09-2013, 08:12 PM
Made some good progress today:

Box is contoured to car:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02248_zpsce90fce1.jpg

Right side of top:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02252_zpscfb2470b.jpg

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02255_zps51b96905.jpg

Plywood here was used because it can bend more. There is about a 1/18 to 1/16 gap that the plywood must bend into.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02256_zpsa6435d6a.jpg

Back pieces done. Bondo will be used to fill in the gap.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02262_zps2b29d5d1.jpg

Now to work on the other side of the box.

PSturmer
07-09-2013, 08:16 PM
That's dope.

thanks man

Danometal
07-09-2013, 08:28 PM
Subscribed. Amazing.

Silver-N-Black
07-10-2013, 08:53 AM
Keep up the good work.

Fattony911
07-10-2013, 12:54 PM
******

PSturmer
07-11-2013, 02:32 AM
Building the bus bar array:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02263_zps53c67fe8.jpg

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02266_zpsd38f1751.jpg

On the back I used T-nuts. These are preferred over taping the copper because copper is soft and thus not much torque can be applied to the securing bolt- high contact pressure is highly desirable for any electrical connection to reduce resistance.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02267_zps0aa74c2e.jpg

Then a board went over these T-nuts to seal the box.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02268_zpsbe32eed1.jpg

The front piece of the box started like this:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02273_zpsed0219af.jpg

And ended like this:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02276_zps8d5fd323.jpg

After being wired:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02284_zps52b6a7a2.jpg

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02286_zpse0edb6cd.jpg

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02288_zpsad987fce.jpg

The sub box will be filled, sanded, and painted next week. The wiring will also be cleaned up.

phemps
07-11-2013, 02:49 AM
This box is ******* sick dude, looks awesome cant wait to see how it turns out for ya

DB-Audio
07-11-2013, 06:17 AM
nice work man

Silver-N-Black
07-11-2013, 08:24 AM
Do you plan on glassing the box?

NIHL8ION
07-11-2013, 08:39 AM
sick build :cool:

Fattony911
07-11-2013, 08:47 AM
So clean

PSturmer
07-11-2013, 10:13 AM
Do you plan on glassing the box?

Lots of bondo and sanding. The general shape it there. Jst the imperfections need to be hidden.

PSturmer
07-11-2013, 10:47 AM
Under the hood:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02282_zpse1761262.jpg

PSturmer
07-14-2013, 11:46 PM
Subs have broken in a bit. To my ear seems to be around 150dB. Stock alternator is keeping the voltage sufficiently high. Stays above 13v.

RangerDangerV2
07-14-2013, 11:52 PM
Subs have broken in a bit. To my ear seems to be around 150dB. Stock alternator is keeping the voltage sufficiently high. Stays above 13v.

what power?

PSturmer
07-14-2013, 11:59 PM
what power?

The are two SoundQubed 2200 watt amps (used to be AudioQue) wired at 1 ohm nominal each. The amps stay surprisingly cool as well.

PSturmer
07-16-2013, 08:03 PM
Taping up the ports:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02351_zpsff47a71f.jpg

Primed:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02355_zps977b0cd7.jpg

PSturmer
07-17-2013, 12:31 AM
After 4 coats:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02360_zpsdc194b27.jpg

Box turned out amazing. Tomorrow the equipment will be re-installed. One of the four ports is also temporarily plugged (from the inside). Using a towel to test this idea out, the sub lower frequency response was increased while the higher bass (about 45 Hz and up) still was well pronounced. On paper, plugging one port lowers the resonant frequency of the box about 5 Hz. Port performance has not been lost even with two ports plugged; the large 1.5" flares on the ports help out a lot.

PSturmer
07-20-2013, 11:16 PM
Some of the paint ended up coming off. With really high humidity and time constraints we had to paint without giving ample time to let the primer dry.

Bass knob, volt meter, and some switches:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/bassremote_zps85ddc7ff.png

Rear wiring:

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/DSC02369_zpsdc01e2d9.jpg

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/systemrear_zpsc9bf355d.png

Very happy with the overall look of the system. Turned out better than I had imagined.

http://i24.photobucket.com/albums/c8/psturmer/2%2018s%20for%20Ted/systemfromrear_zps0627e72f.png

Put together a small video. Didn't get much footage though.

1999 blazer with 2 18's slammin - YouTube (http://www.youtube.com/watch?v=bupOEHV5dXo&feature=youtu.be)

Subs seem to have more mechanical and thermal potential. Without clipping the amps the subs barely warm up, and when not playing anything under 30Hz they only exert about an inch. Perhaps a future upgrade will be to swap out these amps for two 3500's.