Bryan's SLA Pro Build

Short and Transmission Line Arrays for Pros
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Bryan Cox
Posts: 450
Joined: Sun Nov 22, 2015 3:01 pm
Location: Owensville, Mo

Bryan's SLA Pro Build

#1 Post by Bryan Cox »

Hey all,

I'm building a pair of shorty SLAPs for a clients workshop. And before the copyright police arrive, yes I purchased an extra set of plans. Anyway, after having retired from the military, we're all settled in our home and new lives. I love my new workshop. It's small but it does what I need it to do.
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With that said, I began the 2x SLAP shorty's tonight. I only got about an hour to work, but I was able to cut the sides, baffles, and backs. I have to still do the baffle cutouts, but meh, I have tomorrow. I also had to make another circular saw jig. When I retired, the movers classified all my circular saw jigs as scrap wood and not tools. They will not move scrap. At any rate, I'm excited to be building again!

Key point tonight...the SLAP plans say there are half- moon cutouts for the tweeter barrels but provide no dimensions. If using the Goldwoods, the diameter for that hole is 2 1/4". I'll be cutting that out with a hole saw and finishing it with the jig saw.
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!
Otop 12 x 4 (Delta Pro 12-450a) 2x melded, 2x straight
Titan 39 x 4 (3012LF) 20" wide

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J_Dunavin
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Joined: Sun Jul 09, 2006 3:13 pm
Location: Appleton WI
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Re: Bryan's SLA Pro Build

#2 Post by J_Dunavin »

Nice!
I was considering building a pair…
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba

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Tom Smit
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Location: Sarnia, Ont. Canada

Re: Bryan's SLA Pro Build

#3 Post by Tom Smit »

Nice!
TomS

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Bryan Cox
Posts: 450
Joined: Sun Nov 22, 2015 3:01 pm
Location: Owensville, Mo

Re: Bryan's SLA Pro Build

#4 Post by Bryan Cox »

Not much to report for last night. Spent an hour in the shop. Made a hand hole jig and cut the hand holes in the sides. Then I cut and attached the braces. No pics though. I didn't have much time so I spent it working.

Tonight I'll be helping a buddy renovate his old bar into a jam pad so I won't make progress on the SLAPs. However, tomorrow night and all day Saturday it's on.
Otop 12 x 4 (Delta Pro 12-450a) 2x melded, 2x straight
Titan 39 x 4 (3012LF) 20" wide

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J_Dunavin
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Location: Appleton WI
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Re: Bryan's SLA Pro Build

#5 Post by J_Dunavin »

Well shoot, now you need to build a 2nd pair for your buddy’s place 😄
Yaaa some nights it doesn’t seem like much progress but every little bit counts. I spent a good 30 min testing some cuts on scraps for my OT8s to make sure I had it down before slicing and dicing the birch ply.
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba

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Seth
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Location: Sacramento, California, USA
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Re: Bryan's SLA Pro Build

#6 Post by Seth »

Bryan, that workspace looks fantastic. Perfect for these kinds of projects. It's a rare moment in time that my space looks that tidy, clean, and organized.

Looking forward to seeing this unfold :thumbsup:
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

Bruce Weldy
Posts: 8301
Joined: Fri Nov 27, 2009 11:37 am
Location: New Braunfels, TX

Re: Bryan's SLA Pro Build

#7 Post by Bruce Weldy »

Seth wrote: Thu Apr 14, 2022 7:38 pm Bryan, that workspace looks fantastic. Perfect for these kinds of projects. It's a rare moment in time that my space looks that tidy, clean, and organized.
He hasn't lived there long enough to get it messy.....

6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210


"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."

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Bryan Cox
Posts: 450
Joined: Sun Nov 22, 2015 3:01 pm
Location: Owensville, Mo

Re: Bryan's SLA Pro Build

#8 Post by Bryan Cox »

J_Dunavin wrote: Thu Apr 14, 2022 5:43 pm Well shoot, now you need to build a 2nd pair for your buddy’s place 😄
Yaaa some nights it doesn’t seem like much progress but every little bit counts. I spent a good 30 min testing some cuts on scraps for my OT8s to make sure I had it down before slicing and dicing the birch ply.
Absolutely! I was thinking I'd use the active JBL rig for practice there and use the BFM rig exclusively for gigging. Then I thought, why not build a permanent BFM PA there for practice and use the JBLs as our personal drink stands?!
Otop 12 x 4 (Delta Pro 12-450a) 2x melded, 2x straight
Titan 39 x 4 (3012LF) 20" wide

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Bryan Cox
Posts: 450
Joined: Sun Nov 22, 2015 3:01 pm
Location: Owensville, Mo

Re: Bryan's SLA Pro Build

#9 Post by Bryan Cox »

Seth wrote: Thu Apr 14, 2022 7:38 pm Bryan, that workspace looks fantastic. Perfect for these kinds of projects. It's a rare moment in time that my space looks that tidy, clean, and organized.

Looking forward to seeing this unfold :thumbsup:
Thanks, Seth. I really like my workshop to be clean and organized. I find if it's cluttered then so is my brain when I'm trying to build. Weird? I don't know. It's just how I operate.
Otop 12 x 4 (Delta Pro 12-450a) 2x melded, 2x straight
Titan 39 x 4 (3012LF) 20" wide

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Bryan Cox
Posts: 450
Joined: Sun Nov 22, 2015 3:01 pm
Location: Owensville, Mo

Re: Bryan's SLA Pro Build

#10 Post by Bryan Cox »

Bruce Weldy wrote: Fri Apr 15, 2022 7:54 am
Seth wrote: Thu Apr 14, 2022 7:38 pm Bryan, that workspace looks fantastic. Perfect for these kinds of projects. It's a rare moment in time that my space looks that tidy, clean, and organized.
He hasn't lived there long enough to get it messy.....
Haha! Very true. I'm working though the kinks of where I like things and how best to keep it tidy. Truthfully, I don't have a lot of organization options. All the cabinetry and shelving was there when I moved in. I've thought about taking some down but for now it's handy.
Otop 12 x 4 (Delta Pro 12-450a) 2x melded, 2x straight
Titan 39 x 4 (3012LF) 20" wide

jimbo7
Posts: 849
Joined: Fri Dec 28, 2012 10:45 am
Location: St. Louis

Re: Bryan's SLA Pro Build

#11 Post by jimbo7 »

Bryan Cox wrote: Tue Apr 12, 2022 8:48 pm Key point tonight...the SLAP plans say there are half- moon cutouts for the tweeter barrels but provide no dimensions. If using the Goldwoods, the diameter for that hole is 2 1/4". I'll be cutting that out with a hole saw and finishing it with the jig saw.
It's been a minute, but I believe I did the exact same thing.

Let me know when/if you want those office air vent grills
BFM builds:
XF212
T24 BP102 24"
2x SLA's 6-5" mids, 9- gt-302's
2x AT 14" MCM 55-2421
TrT 5" MCM 55-2421
AT 18" JBL GTO804
2x OT12 flat array
2x SLA Pro 2-Alpha 6's 2-Goldwoods
2x T39 24" 3012lf
Simplex 10 BP102

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Bryan Cox
Posts: 450
Joined: Sun Nov 22, 2015 3:01 pm
Location: Owensville, Mo

Re: Bryan's SLA Pro Build

#12 Post by Bryan Cox »

jimbo7 wrote: Fri Apr 15, 2022 7:32 pm
Bryan Cox wrote: Tue Apr 12, 2022 8:48 pm Key point tonight...the SLAP plans say there are half- moon cutouts for the tweeter barrels but provide no dimensions. If using the Goldwoods, the diameter for that hole is 2 1/4". I'll be cutting that out with a hole saw and finishing it with the jig saw.
It's been a minute, but I believe I did the exact same thing.

Let me know when/if you want those office air vent grills
Thanks, Jimbo. I think I'll pass on them for now.
Otop 12 x 4 (Delta Pro 12-450a) 2x melded, 2x straight
Titan 39 x 4 (3012LF) 20" wide

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Bryan Cox
Posts: 450
Joined: Sun Nov 22, 2015 3:01 pm
Location: Owensville, Mo

Re: Bryan's SLA Pro Build

#13 Post by Bryan Cox »

Spent a few hours in the workshop today and made decent progress. I'm not attempting to win any beauty contests here but they are square and correct, I believe. The customer doesn't want to spend any extra on bondo, sanding, duratex, etc.. He wants flat black and doesn't care in the least for cosmetics. In that spirit, I used ply, nails, and romex for the crossovers. Hopefully I'll get more time tomorrow.
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Otop 12 x 4 (Delta Pro 12-450a) 2x melded, 2x straight
Titan 39 x 4 (3012LF) 20" wide

Bruce Weldy
Posts: 8301
Joined: Fri Nov 27, 2009 11:37 am
Location: New Braunfels, TX

Re: Bryan's SLA Pro Build

#14 Post by Bruce Weldy »

I don' care what my crossovers look like either - as long as they work. Cabs are looking good.

6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210


"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."

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J_Dunavin
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Joined: Sun Jul 09, 2006 3:13 pm
Location: Appleton WI
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Re: Bryan's SLA Pro Build

#15 Post by J_Dunavin »

Looking good man! Keep the pictures coming. Looking forward to a review. What amp is your buddy going to use?
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba

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