SLA Pro - Powered

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Bruce Weldy
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Re: SLA Pro - Powered

#151 Post by Bruce Weldy »

Seth wrote: Sun Apr 11, 2021 1:39 pm Actually... the coil is on the wrong side of the capacitor, isn't it? Looks to me, that could very well be the issue.
You and Bill are correct......

Here's a good pic of it....Can't believe I got this wrong......but, there it is in full color.
IMG_3252.JPG
Now, can i get to the crossover to re-solder it without having to tear everything apart.....or can I get my fat fingers in there to pull it off? I'm thinking no, I can't.

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."

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

Re: SLA Pro - Powered

#152 Post by Bruce Weldy »

Guess I owe a giant Mea Culpa to the makers of the amp that I so ardently trashed. If I knew how to say "sorry" in Chinese, I would....

I'll get it fixed and report.

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."

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

Re: SLA Pro - Powered

#153 Post by Bruce Weldy »

Popped the jack plate......definitely going to have to go in through the baffle......putting the grill back on will be a giant pain....

I guess I deserve the pain since I screwed it up to begin with.... :bash: :cussing: :slap:

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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Seth
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Location: Sacramento, California, USA
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Re: SLA Pro - Powered

#154 Post by Seth »

Bruce Weldy wrote: Sun Apr 11, 2021 4:25 pm Now, can i get to the crossover to re-solder it without having to tear everything apart.....or can I get my fat fingers in there to pull it off? I'm thinking no, I can't.
Honest mistake. I'm certainly not immune to making them myself and I'm always grateful to have you guys to bounce ideas off of.

If it were me, I'd just snip it at it's current junction and solder in a short jumper over to the other side of the cap. Speaker wire or whatever you used for the negative side of the filter circuit. The soldering iron would take longer to heat up than the actual fix.

I'm not sure how much of a PITA the grill really is, but it looks to me like a 5 minute fix, start to finish. That's assuming you're not wringing a manual screwdriver. If that's the case, add 20-30 seconds per screw :mrgreen:

Ultimately, a simple solution and quick resolution to the whole "why does the amp cut out" question. Honestly, I enjoyed the mental puzzle on my end. Thanks for the opportunity to make a contribution Bruce.
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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Tom Smit
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Location: Sarnia, Ont. Canada

Re: SLA Pro - Powered

#155 Post by Tom Smit »

Bruce Weldy wrote: Sun Apr 11, 2021 4:17 pm Starting to feel like a real newb.......
Oooooo, would that mean that you get to "enjoy" learnin' again. Reliving memories?...... :lol:
TomS

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Seth
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Location: Sacramento, California, USA
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Re: SLA Pro - Powered

#156 Post by Seth »




:mrgreen:
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: SLA Pro - Powered

#157 Post by Bruce Weldy »

Tom Smit wrote: Sun Apr 11, 2021 9:15 pm
Bruce Weldy wrote: Sun Apr 11, 2021 4:17 pm Starting to feel like a real newb.......
Oooooo, would that mean that you get to "enjoy" learnin' again. Reliving memories?...... :lol:
Yep, I'll be reliving the memory of how hard it was to line up the screws to the screw holes on that grill.

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."

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

Re: SLA Pro - Powered

#158 Post by Bruce Weldy »

Seth wrote: Sun Apr 11, 2021 9:34 pm


:mrgreen:
Too bad I can't listen to the video as my upgrade to Win10 has left my PC speechless. Not compatible with my old sound card.......but, not to worry - my old friend Mike (who has 4 T48s and 4 OT12s in his garage gathering dust) is going to build me a new one.

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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AntonZ
Posts: 2664
Joined: Sun May 14, 2006 6:00 am
Location: NL

Re: SLA Pro - Powered

#159 Post by AntonZ »

Bruce Weldy wrote: Sun Apr 11, 2021 4:17 pm Starting to feel like a real newb.......
Didn't you get that IITP thing? :horse:
O man, you are such a newb aren't you.



Made my day Bruce :cowboy:

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Seth
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Re: SLA Pro - Powered

#160 Post by Seth »

Was looking a little closer at your grill install and I can see now why you're apprehensive about getting the screws back in. You can't see through the foam.

Once you get the grill off, if you put a little countersink on each of the screw holes (even with a Philips bit), it should make reassembly easier being able to better feel where the holes are. Dab a little black paint in the countersink so they blend in.

Just a thought.

Image
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: SLA Pro - Powered

#161 Post by Bruce Weldy »

AntonZ wrote: Mon Apr 12, 2021 10:10 am
Bruce Weldy wrote: Sun Apr 11, 2021 4:17 pm Starting to feel like a real newb.......
Didn't you get that IITP thing? :horse:
O man, you are such a newb aren't you.



Made my day Bruce :cowboy:
I deserve all of the derision that comes my way......even from overseas...... :oops:

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."

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

Re: SLA Pro - Powered

#162 Post by Bruce Weldy »

Seth wrote: Sun Apr 11, 2021 7:30 pm but it looks to me like a 5 minute fix, start to finish.
Actually, it took about an hour and a half......5 minutes to take apart, 5 minutes to solder in the wire, one hour to go eat breakfast tacos with my wife, then 20 minutes to put that damned grill back on.

However, my bout with dumbassery has been properly medicated and I'm now totally healed.

The SLA is purring along and can take full power without going thermal.


Let us not talk of this embarrassing incident again. :oops:

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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Seth
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Location: Sacramento, California, USA
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Re: SLA Pro - Powered

#163 Post by Seth »

Bruce Weldy wrote: Mon Apr 12, 2021 11:30 am Let us not talk of this embarrassing incident again. :oops:
(fingers crossed behind my back) I'll totally not bring it up next time you make a crossover. Scouts Honor. Pinky Swear. Cross my heart. :lol:
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

User avatar
AntonZ
Posts: 2664
Joined: Sun May 14, 2006 6:00 am
Location: NL

Re: SLA Pro - Powered

#164 Post by AntonZ »

Bruce Weldy wrote: Mon Apr 12, 2021 11:24 amI deserve all of the derision that comes my way......even from overseas...... :oops:
I wouldn't take on a texan in texas. Adding insult to injury from the far side of the pond on the other hand..... :slap:

:wink:
Seth wrote: Mon Apr 12, 2021 12:44 pm(fingers crossed behind my back) I'll totally not bring it up next time you make a crossover. Scouts Honor. Pinky Swear. Cross my heart. :lol:
Yeah. What he said. Totally.
(you did take notes, right Seth?)

:owned:

Grant Bunter
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Re: SLA Pro - Powered

#165 Post by Grant Bunter »

I'm just happy for you that you got it sorted Bruce...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

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