SLA Pro - Powered
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Re: SLA Pro - Powered
Really turned out nice!
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Re: SLA Pro - Powered
Haha, website says my local Lowes has 'em in stock for less than 2 bucks a piece. Will pick some up later this weekBruce Weldy wrote: ↑Sat Dec 26, 2020 7:00 pmWell, here ya' go....himhimself wrote: ↑Sat Dec 26, 2020 6:41 pm Looks totally awesome, Bruce. I like the leather punch idea. Nothing more frustrating than having a screw wind up the fabric it's going though. I used a hot nail, heated up with a torch, to melt holes through the grill cloth on my truck tuba. Thanks for the foam info - I still need to back the grills on my j-arrays...
https://www.amazon.com/gp/product/B07YN ... UTF8&psc=1
If you can find 'em at Wal-Mart - the exact same thing is about $2 each. But, you might have to wait until summer for 'em to stock 'em again.

2xT30 (20", 3012LF)
2xT30 (21", 3012LF)
4xOtop J-array (Beta12, melded/straight)
Truck Tuba (MCM)
Next up: 2xJack12L or family of table tubas
2xT30 (21", 3012LF)
4xOtop J-array (Beta12, melded/straight)
Truck Tuba (MCM)
Next up: 2xJack12L or family of table tubas
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- Joined: Fri Nov 27, 2009 11:37 am
- Location: New Braunfels, TX
Re: SLA Pro - Powered
himhimself wrote: ↑Sun Dec 27, 2020 11:57 am
Haha, website says my local Lowes has 'em in stock for less than 2 bucks a piece. Will pick some up later this weekThanks again!

Glad you found 'em!
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."
Re: SLA Pro - Powered
Bruce Weldy wrote: ↑Sat Dec 26, 2020 6:32 pm
Then sprayed the grill with adhesive (never the foam - don't want to clog it all up). Laid the grill on top of the foam, then a piece of scrap plywood to cover it all and some weight on top of that.
Love it, Bruce. The spray adhesive doesn't leak thru to the front of the grille before it dries?
I really need to do grilles on my wedges...I'm still on the fence after all these years about adding grilles (and filters) to my Jacks. I don't think I've ever brought them to a gig that someone didn't ask, "what in the world are those speakers'?
Built:
4 Jack 112L- 3012HO, melded array
17.5 wide AutoTuba with Infinity 860w
6 Wedgehorn W6 w/ Panel Mount Piezos
2 T48 Slims (15" wide) with 3012LF
4 T48 Fattys (32" wide) with 3015LF
4 Jack 112L- 3012HO, melded array
17.5 wide AutoTuba with Infinity 860w
6 Wedgehorn W6 w/ Panel Mount Piezos
2 T48 Slims (15" wide) with 3012LF
4 T48 Fattys (32" wide) with 3015LF
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- Joined: Fri Nov 27, 2009 11:37 am
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Re: SLA Pro - Powered
The spray adhesive is really tacky when it comes out - there isn't any running or leaking.NukePooch wrote: ↑Sun Dec 27, 2020 3:00 pmBruce Weldy wrote: ↑Sat Dec 26, 2020 6:32 pm
Then sprayed the grill with adhesive (never the foam - don't want to clog it all up). Laid the grill on top of the foam, then a piece of scrap plywood to cover it all and some weight on top of that.
Love it, Bruce. The spray adhesive doesn't leak thru to the front of the grille before it dries?
I really need to do grilles on my wedges...I'm still on the fence after all these years about adding grilles (and filters) to my Jacks. I don't think I've ever brought them to a gig that someone didn't ask, "what in the world are those speakers'?
I've always like the look with grills. People still don't know what they are.
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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- Joined: Mon Jan 04, 2010 9:36 am
- Location: Bradley, WV Authorized Builder
Re: SLA Pro - Powered
Nice looking setup! You have a lot of the same construction techniques as I do including the use of home made square clamps, pattern bits, leaving panels proud and route to fit. My philosophy is that when going for a perfect fit it is easy to be off just a hair. It is far easier to make a planned error that can easily be dealt with, resulting in perfection. Since there is going to be an error make it in your favor.
On your hole problem. I have had to do something similar in the past. First use a holesaw to go as deep as you need. The sides of the holesaw aid in keeping it in proper alignment. Next make several slices in the piece that is left with a jig saw. Angle it slightly and make a bunch of cuts through the brace. The remaining slivers can easily be broken off. Care needs to be taken with the jig saw since it is not a through cut and can bounce if you are not steady.
On your hole problem. I have had to do something similar in the past. First use a holesaw to go as deep as you need. The sides of the holesaw aid in keeping it in proper alignment. Next make several slices in the piece that is left with a jig saw. Angle it slightly and make a bunch of cuts through the brace. The remaining slivers can easily be broken off. Care needs to be taken with the jig saw since it is not a through cut and can bounce if you are not steady.
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- Joined: Fri Nov 27, 2009 11:37 am
- Location: New Braunfels, TX
Re: SLA Pro - Powered
Got in my end of year supplies order......it was time to re-stock on connectors, etc. Picked up 6 ft. of 4 conductor speaker cable for the roundtrip path from the amp to the sub and back. 3 new NL2FX and one old NL4 (used pin 2+- for the output of the sub). I wired the pin 2 output when I had help on running my PA and I didn't want someone to hook it up wrong - this way, if it was wired wrong, it wouldn't work. So, I just left it. Thus, the return path is wired pin 2 on the sub end and pin 1 on the SLA end. It's a special cable and won't be used for anything else.
I labeled the Jacks, the switch, and the Amp presets (above the amp).
So, it was time to take it out and fire it up. Used a bunch of songs to get the EQ curve set for both Con Sub and Sin Sub (that's Spanish for with and without - hey, I'm in Texas, right?)
The SLA full range isn't bad at all. The sub helps to round it all out of course.
I'm not real happy with the amp. When I was first messing with it, it would cut out with a loud pop if I hit it too hard. I had turned on the limiter when I was first checking out the amp, so I figured that was it. When I started the real setup, I turned off the limiter......yet, it still did it with too much input. I was running direct into the 1/4" input from my iPod. I hope it's just an input limiter of some kind because I wasn't really pushing it all that hard. However, it did it once when I was testing it with the bluetooth input.....
Next test will be with a mixer in more of a real world setting. I hope it has the juice to get a little volume out of it. It's rated 400 watts at 4 ohms, so this rig is getting about 200. It should be getting louder than it is without clipping. Hopefully, with the correct balanced input, it will give me what I want. If not, it will be back to an amp and a driverack....
If that happens, I might yank it out and throw it into a Simplexx 10 wedge. I have options.....and tools....
I labeled the Jacks, the switch, and the Amp presets (above the amp).
So, it was time to take it out and fire it up. Used a bunch of songs to get the EQ curve set for both Con Sub and Sin Sub (that's Spanish for with and without - hey, I'm in Texas, right?)
The SLA full range isn't bad at all. The sub helps to round it all out of course.
I'm not real happy with the amp. When I was first messing with it, it would cut out with a loud pop if I hit it too hard. I had turned on the limiter when I was first checking out the amp, so I figured that was it. When I started the real setup, I turned off the limiter......yet, it still did it with too much input. I was running direct into the 1/4" input from my iPod. I hope it's just an input limiter of some kind because I wasn't really pushing it all that hard. However, it did it once when I was testing it with the bluetooth input.....
Next test will be with a mixer in more of a real world setting. I hope it has the juice to get a little volume out of it. It's rated 400 watts at 4 ohms, so this rig is getting about 200. It should be getting louder than it is without clipping. Hopefully, with the correct balanced input, it will give me what I want. If not, it will be back to an amp and a driverack....
If that happens, I might yank it out and throw it into a Simplexx 10 wedge. I have options.....and tools....
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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Re: SLA Pro - Powered
Here's video of the test.....first one is with the sub....these are short and sweet, just enough to tell the differnce between the two setups.
https://www.youtube.com/watch?v=5N1yyIYln5k
This one is the SLA full range, no sub....
https://www.youtube.com/watch?v=lwldOwuiK1w
https://www.youtube.com/watch?v=5N1yyIYln5k
This one is the SLA full range, no sub....
https://www.youtube.com/watch?v=lwldOwuiK1w
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."
Re: SLA Pro - Powered
That setup looks slick Bruce. Glad the grill worked out! 

Good food, good people, good times.
4 - AT
1 - TT
1 - THT Slim
2 - SLA Pro 4x6 Alphalite
4 - AT
1 - TT
1 - THT Slim
2 - SLA Pro 4x6 Alphalite
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Re: SLA Pro - Powered
Worked out great - thanks for sending it to me!
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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- Posts: 8539
- Joined: Fri Nov 27, 2009 11:37 am
- Location: New Braunfels, TX
Re: SLA Pro - Powered
Getting ready to take out the Bose Killer on its maiden voyage tomorrow night. The SLA is really not an easy cab to move. The port/handles just don't work for me.
Fortunately, I've had an extra brand new Penn Elcom spring handle laying around the among the speaker building parts.
So, I drug out the router and my trusty template that I made years ago for putting handles on the top/end of my Yamaha monitors.....the handle location on them sucks.... Just did some measuring to get it where I wanted...... You'll notice that it's not centered on the top, but the pivot of the handle is. I figured that made more sense, since that's where you are lifting from. Now, I'm gonna' re-write that sentence because I just have to do this.......
I figured that made more sense, since cents are what aesthetics are worth and usability is worth dollars. Sorry.....but, how often do you get the use three different words that sound the same right in a row?
Moving on the the glamour shots......
Now to figure out how to get that T24 in my truck.....I think I'll enlist my wife.
Last Saturday, I had a sound gig at a local venue and I had to take a few things and set up a full stage. For the first time since 1977 when we started dating, my wife helped me lug in some stuff and actually helped me work the stage before and after the show. Don't know if that's all out of her system now, but I'm damned sure gonna' try to keep that going!
Fortunately, I've had an extra brand new Penn Elcom spring handle laying around the among the speaker building parts.
So, I drug out the router and my trusty template that I made years ago for putting handles on the top/end of my Yamaha monitors.....the handle location on them sucks.... Just did some measuring to get it where I wanted...... You'll notice that it's not centered on the top, but the pivot of the handle is. I figured that made more sense, since that's where you are lifting from. Now, I'm gonna' re-write that sentence because I just have to do this.......
I figured that made more sense, since cents are what aesthetics are worth and usability is worth dollars. Sorry.....but, how often do you get the use three different words that sound the same right in a row?
Moving on the the glamour shots......
Now to figure out how to get that T24 in my truck.....I think I'll enlist my wife.
Last Saturday, I had a sound gig at a local venue and I had to take a few things and set up a full stage. For the first time since 1977 when we started dating, my wife helped me lug in some stuff and actually helped me work the stage before and after the show. Don't know if that's all out of her system now, but I'm damned sure gonna' try to keep that going!
Last edited by Bruce Weldy on Fri Mar 12, 2021 9:48 am, edited 1 time in total.
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."
Re: SLA Pro - Powered
So, you've got a handle on things, then?
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
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
- Strange Kevin
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- Location: Scottsdale AZ
Re: SLA Pro - Powered


Looking good Bruce!
Authorized Builder - Phoenix AZ.
Main Rig - 6 DR200s - 6 T48s (30")
SLA Pros for the smaller stuff.
Main Rig - 6 DR200s - 6 T48s (30")
SLA Pros for the smaller stuff.
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- Joined: Wed Apr 04, 2012 1:30 pm
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Re: SLA Pro - Powered
Good luck! Look forward to your gig report!
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- Joined: Fri Nov 27, 2009 11:37 am
- Location: New Braunfels, TX
Re: SLA Pro - Powered
The show went well. I had to really EQ out some bottom end that was really noticeable in the venue that wasn't there in the garage.....no surprise. Once I cleaned it up, all was good.
Lots of good comments how well everyone could hear the vocals and understand every word.
There seemed to be plenty of oomph for the venue. It was an outside patio - three sides open.
All in all - it's a keeper. Don't know how the SLA by itself would be - may have to test that sometime. It would be great not to have to take the sub. I didn't think it would have enough low end - but now that I know the garage doesn't translate well - it may indeed have enough for an acoustic type gig.
Lots of good comments how well everyone could hear the vocals and understand every word.
There seemed to be plenty of oomph for the venue. It was an outside patio - three sides open.
All in all - it's a keeper. Don't know how the SLA by itself would be - may have to test that sometime. It would be great not to have to take the sub. I didn't think it would have enough low end - but now that I know the garage doesn't translate well - it may indeed have enough for an acoustic type gig.
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."