Horns Bazookas & SI DS4 18 SQ FTW!

[onebadmonte]

Horns Bazookas & SI DS4 18 SQ FTW!

Greetings and salutations beings of the internet. I come bearing random thoughts ramblings and a build log. This will be version 3 of my 2004 suburban. The setup:

Sony XAV-701HD
Stevens Audio Full Size Horns
Beyma 8BR40 8" Mids
Arc PS8
Bazooka MGA series Amps
Stereo Integrity DS4 18 sealed 6cuft

This is also the simplest iteration. I employed the KISADUWDATTDT method: Keep It Simple And Don't Upgrade When Done And Tune The Damn Thing. Just a little FYI the horn install happened a few years ago. This a compilation of a build that spanned a few years.

Up first are the horns. You've seen one you've seen them all but just in case here is a pic.

I designed in CAD and had CNC plasma cut some brackets.

I did a little prepping of the horn bodies before installing.

Here is the passenger side mocked up in place.

The final install.

For those who can get enough pics here is a link to more:

http://s1005.photobucket.com/user/onebadmonte32/slideshow/The rebuild/horn update

Stay tuned for moar updates.

[onebadmonte]

I made some kick pods that can actually be kicked, but I won't appreciate it if you do it intentionally during a demo.

This is the vision with the little Beyma 8BR40 in place.

Layed up some glass.

Made some kick ass rings with some simple steel mesh grills. I'm using some threaded wood inserts and 8-32 button head cap screws to hold everything down.

After some blood, sweat, and many many many tears I got some pods made.

After a fresh coat of rubber undercoating I mounted the pods to the kick panels.

The final install

More pics can be seen here:

http://s1005.photobucket.com/user/onebadmonte32/Suburban V3/Kick Pods/story

Moar updates coming up.

[onebadmonte]

And now for a little bottom end brought to you via a Stereo Integrity DS4 18.

Freshly cut wood.

I'm using a textured piece of abs plastic one the baffle for a little something extra.

Box with a pair of Bazooka MGA1100h strapped (2KW) to the 18. Boom!

Bazooka 4 channel, Arc PS8 and Stinger wire goodies.

A little carpeting action.

Finished product.

Pics for those that gotta have moar!

http://s1005.photobucket.com/user/onebadmonte32/Suburban V3/Sub Box/story

Thanks for looking.

 

[onebadmonte]

Got me a little something extra for the PS8.

Drew me up a little housing to mount in the dash.

Laser cut FTW!

Formed and welded.

Cut some mounting ears and welded some flanged nuts using works tig.

Used my crappy flux core mig at home to eff everything up.

The final install

For more behind the scenes pics:

http://s1005.photobucket.com/user/onebadmonte32/Suburban V3/PS8 Pod/story
Thanks for looking.

[WalledSonic]

A bit of a departure from the norm... I like it.  Tuned in.

EDIT: did you just clear coat the steel? Couldnt tell in the final 2 pics

[bcbrassard]

Nice equipment, well thought out system layout. Great skills man, tuned in for your review.

[onebadmonte]

8 hours ago, WalledSonic said:

A bit of a departure from the norm... I like it.  Tuned in.

EDIT: did you just clear coat the steel? Couldnt tell in the final 2 pics

Keeping it small this go around. I did rattle can the steel black. Thanks.

3 hours ago, bcbrassard said:

Nice equipment, well thought out system layout. Great skills man, tuned in for your review.

Thanks.

[onebadmonte]

At this point everything is up and running. Horns are highpassed at 1600hz 24db/oct LR. The mids are playing 80hz to 1600hz 24db/oct LR at both ends. Subs are lowpassed at 80hz 24db/oct LR, no subsonic filter. The highs are non-existant with out some eq. A buddy recommended a special filter Veritas used to offer for the horns they once sold. Here is the info I was given.

This the specifics on the filter.

This is the modeled response of the filter by my buddy.

Here I go trying to calculate the input impedance of the Bazooka amp.

After using this calculator I came up with 10k input impedance. Close enough.

Here are my little filters.

This was the response of the horns before the filter. Left black right red.

This is the response of the horns after the filter was installed.

On to more tuning.

 

[onebadmonte]

Things happen. Sadly one of the channels on my little Bazooka 4 channel started cutting out. I had to swap it out for another amp I had laying around, JL HD600/4.

Before with the Bazooka

After with the JL amp

Luckily the input impedance is the same on both amps so no change to the horn filter thingie. I did have to reset the gains on the amps and the PS8. The JL has a small range and low voltage requirement for the low level inputs so I had the lower the signal at the PS8 since the Sony has 5V pre outs. :/ Back to tuning.

[onebadmonte]

At this point in time Stereo Integrity discontinues the DS4 line and closes them out at a I can resist price. I pick one for just in case. Unfortunately storage space has become a preminum and I say eff it, I can cut another hole in the box and run two. So much for the no upgrades.

Moar sub pics.

Everything back out.

Fingers crossed that I don't eff it up.

Now its a box for two.

All back in.

The subs are dual 2 ohm coils. The amps put out 1k at 2ohms or 750w at 1ohm. So I take a hit in the power dept but gain in the cone area side. All in all its a wash. I need to start tuning.