Jack 12 lite build

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Rob Shasta Guitar
Posts: 46
Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#16 Post by Rob Shasta Guitar »

20180719_230045.jpg
Got as far along as spraying a coat of sealer. Critical error though, I put the ducts peices too close together so the duct is now smaller than is should be. Can making the duct cover a bit smaller compensate? I went with 1 3/4 instead of 2", I'm using a basslite.
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this is the error, you can see the 4 duct paths are not the same size
this is the error, you can see the 4 duct paths are not the same size
20180719_174137.jpg
rabbeting for the trim
rabbeting for the trim
20180719_204249.jpg
Last edited by Rob Shasta Guitar on Fri Jul 20, 2018 7:29 pm, edited 1 time in total.
Sla Pro 5" drivers, t39 10" driver

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J_Dunavin
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Re: Jack 12 lite build

#17 Post by J_Dunavin »

Rob Shasta Guitar wrote: Fri Jul 20, 2018 1:34 am
20180719_230045.jpg
:shock:
Bill this has got to be front page picture worthy! Dang!
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba

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Bill Fitzmaurice
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Re: Jack 12 lite build

#18 Post by Bill Fitzmaurice »

Rob Shasta Guitar wrote: Fri Jul 20, 2018 1:34 am I put the ducts peices too close together so the duct is now smaller than is should be.
I don't follow. The ducts extend from horn sheath to horn sheath.

Rob Shasta Guitar
Posts: 46
Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#19 Post by Rob Shasta Guitar »

Bill Fitzmaurice wrote: Fri Jul 20, 2018 11:56 am
Rob Shasta Guitar wrote: Fri Jul 20, 2018 1:34 am I put the ducts peices too close together so the duct is now smaller than is should be.
I don't follow. The ducts extend from horn sheath to horn sheath.
Page 20 duct extension brackets, 5"x 1 1/2" I have them tucked under the baffle instead of butted up to it. I am also using the 1/2" throughout that area, that should all be 1/4 to stay with places where the substitution would matter. You can see in the picture they are not all the same size, and in the first picture you can see them from the front. I realized the error when I realized the 8 1/2" x 1 or 2" duct extension only needed to be 8" long.
Sla Pro 5" drivers, t39 10" driver

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Bill Fitzmaurice
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Re: Jack 12 lite build

#20 Post by Bill Fitzmaurice »

The width of the duct paths doesn't matter.

Das Jugghead
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Location: Indianapolis

Re: Jack 12 lite build

#21 Post by Das Jugghead »

I have been away for a bit and HOLY MOSES what a build! Simply stunning build. I am in awe. You, sir, have a gift. Thanks for sharing and for the inspiration.
Last edited by Das Jugghead on Sun Aug 26, 2018 9:28 am, edited 1 time in total.

Rob Shasta Guitar
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Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#22 Post by Rob Shasta Guitar »

Thanks for the kind words, I still stick my tongue out when I glue just like every one else. I hope there is something useful in the pictures,happy to answer questions. I'll be needing help with plenty of setup stuff, enjoying the room eq conversation on ACUA thread.
Bill, thanks for the clarification and the plans, these have been enjoyable projects.
Sla Pro 5" drivers, t39 10" driver

Rob Shasta Guitar
Posts: 46
Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#23 Post by Rob Shasta Guitar »

Not too much to show, made the whole thing shinier with lacquer. Next time I think I'd prefinish the panels prior to assembly. Cool old delta tool for making circles. Simple pin with an adjustable thing in the track. Pretty easy to set the size.
Attachments
20180725_180007.jpg
20180725_181629[1].jpg
Sla Pro 5" drivers, t39 10" driver

Rob Shasta Guitar
Posts: 46
Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#24 Post by Rob Shasta Guitar »

Waiting on parts for the Jack, when I made my t39 last year I cut parts for a second, this seemed a good time to glue them together.
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20180731_195446[1].jpg
20180731_140426[1].jpg
Sla Pro 5" drivers, t39 10" driver

Rob Shasta Guitar
Posts: 46
Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#25 Post by Rob Shasta Guitar »

Got the driver today, basslite. Yeah I stacked em up in my living room just to look cool, then did my best Back to the Future impression.
So far pretty impressed, excited to get the tweeter array going. Plugged a guitar and bass in at the local music store, he makes tube amps so powered by one of his 20w amps. Filled the store and rattled the windows, the sound seemed to be every where.
Attachments
20180804_163757r.jpg
20180804_172748r.jpg
Sla Pro 5" drivers, t39 10" driver

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Padde298
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Re: Jack 12 lite build

#26 Post by Padde298 »

TOP DOLLAR BUILD!!!!
More bass, more bass! :chainsaw: :chainsaw:

2 x TAT

Rob Shasta Guitar
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Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#27 Post by Rob Shasta Guitar »

Not sure if this is the driver from the Jack 12 or the 10 in from the T 39, picture on the wood stove is where the SLA was sitting, looks like I have some new speakers to build once I have a place to put them again, there were four guitars that I had made in the house and all the bfm speakers were there
Sla Pro 5" drivers, t39 10" driver

Rob Shasta Guitar
Posts: 46
Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#28 Post by Rob Shasta Guitar »

Sorry having trouble uploading pictures from my phone
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20180825_104520.jpg
20180825_104530.jpg
Sla Pro 5" drivers, t39 10" driver

Rob Shasta Guitar
Posts: 46
Joined: Wed Apr 20, 2016 4:34 pm

Re: Jack 12 lite build

#29 Post by Rob Shasta Guitar »

Having trouble uploading pictures. If the text comes through without pictures, imagine a lot of charcoal and it barely recognizable magnet protruding
Sla Pro 5" drivers, t39 10" driver

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Seth
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Re: Jack 12 lite build

#30 Post by Seth »

HOLEY SH!T !!!!!!!!!!

Did your house burn down in one of the wild fires? Absolutely devastating Rob. My stomach is in knots. So sorry. Hopefully everyone is okay.

Sending all my good juju your direction buddy.


For those that may not be aware, there are a lot of wild fires in California this year.
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

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