Jack 12 Full Piezo Crossover Pics

The Jack of All Trades pro-sound cabs.
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nola50
Posts: 297
Joined: Sun May 14, 2006 11:58 pm
Location: Baton Rouge, LA

Jack 12 Full Piezo Crossover Pics

#1 Post by nola50 » Sat Oct 10, 2020 6:44 am

I’m finally in the long home stretch completion of my 2 Jack 12 Lites with Leland Crooks excellent build of 2 full piezo arrays.

Looking at the build out for the crossover, I am looking for any pics you might have of your examples. I know there are some crafty things you have done.

Also, I’ve seen some ideas of using hot glue for the components, but I don’t feel they will be sturdy enough over time. I was heading toward cable ties.

Thank you in advance for your comments. This forum is a big help to all.

Bruce Weldy
Posts: 7225
Joined: Fri Nov 27, 2009 11:37 am
Location: New Braunfels, TX

Re: Jack 12 Full Piezo Crossover Pics

#2 Post by Bruce Weldy » Sat Oct 10, 2020 9:16 am

nola50 wrote:
Sat Oct 10, 2020 6:44 am
I’m finally in the long home stretch completion of my 2 Jack 12 Lites with Leland Crooks excellent build of 2 full piezo arrays.

Looking at the build out for the crossover, I am looking for any pics you might have of your examples. I know there are some crafty things you have done.

Also, I’ve seen some ideas of using hot glue for the components, but I don’t feel they will be sturdy enough over time. I was heading toward cable ties.

Thank you in advance for your comments. This forum is a big help to all.
Hot glue AND zip ties.

6 - T39 4-25" 2-22" 3012LF
4 - OT12 2512 Melded/NSD2005
1 - T24
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."

himhimself
Posts: 373
Joined: Fri Nov 13, 2015 9:34 pm
Location: Bloomington IN

Re: Jack 12 Full Piezo Crossover Pics

#3 Post by himhimself » Sat Oct 10, 2020 9:33 am

I used terminal blocks when I built mine for my j-arrays, assuming jack x-overs would be similar. Was real happy with how they turned out and minimizes the soldering. I have a pic in my build thread - not sure the hyperlink is pasting in correctly - but you can search for it under Otop Jarray build. I used zip ties and hot glue, and I think maybe even some PL for extra hold.

download/file.php?id=13332&mode=view
2xT30 (20", 3012lf)
4xOtop J-array (Beta12, melded/straight piezos)
Truck Tuba (MCM)

nola50
Posts: 297
Joined: Sun May 14, 2006 11:58 pm
Location: Baton Rouge, LA

Re: Jack 12 Full Piezo Crossover Pics

#4 Post by nola50 » Sat Oct 10, 2020 10:20 am

Very nice and clean!

I'd like to do both filters together and mount them on the back cover on one side with the 2 combo jacks on the other side.

Dale Hammer
Posts: 73
Joined: Wed Apr 04, 2012 1:30 pm
Location: Topeka, Kansas

Re: Jack 12 Full Piezo Crossover Pics

#5 Post by Dale Hammer » Sat Oct 10, 2020 1:56 pm

I used turret board construction since I build tube amps once in a while. These are from my Jack 10's.
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Definitely wire ties for the heavy items.

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