G'day mates!
Just did a gig with my 2 OT12s and noted one of the boxes HF to be significantly lower than the other. It was to the point we had to attenuate the amp channel of the louder box and boost the HF of the quieter box in order to get roughly equal HF output.
Does this mean I have bad elements in my tweeter arrays?
How hard is it to convert OT12s with melded arrays to compression drivers and has anyone here done it?
Cheers,
Dan
Melded array issues
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commander_dan
- Posts: 479
- Joined: Sun Feb 16, 2014 7:19 pm
- Location: Perth, Western Australia
Melded array issues
Built:
6 T30 (24", 3012LF)
2 OT12 (MA, 3012HO)
2 T24 (18", 3010LF)
Running:
DCX2496
XTi 2002
XTi 4002
TRAKTOR Z2
TECHNICS 1210 Mk5's
6 T30 (24", 3012LF)
2 OT12 (MA, 3012HO)
2 T24 (18", 3010LF)
Running:
DCX2496
XTi 2002
XTi 4002
TRAKTOR Z2
TECHNICS 1210 Mk5's
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Keryn O'Shea
- Posts: 621
- Joined: Sat Jan 26, 2013 5:50 pm
- Location: Brisbane, Australia
Re: Melded array issues
G'day Dan,
Grab a length of hose, play pink/white noise or a test tone above 3k & hold one end of the hose to your ear, the other closely to each element individually to test. If they're all the same volume/pitch, swap the cab to the other channel on the amp, if no change it's possibly cab wiring or the HF filter.commander_dan wrote: ↑Fri Jan 23, 2026 2:14 pm Does this mean I have bad elements in my tweeter arrays?
It's not hard, though personally l'd stick to the melded with your setup.commander_dan wrote: ↑Fri Jan 23, 2026 2:14 pm How hard is it to convert OT12s with melded arrays to compression drivers and has anyone here done it?
AT8 14", AT10 19", T30 28" LAB12, T48 36" 3015LF, THT 20" LAB15, SLA 4x3"/4x4", CArray 6x4", TLAH, TLAP, J10 FA, J12 FA, OT8 CD, OT12 FA, OT15 CD, SLAP 2x6"/4x6", WH8, DR280 MA, XF210. Next J10L
Re: Melded array issues
If you haven't already, the first thing I'd personally do is swap the speaker cabs one side to the other and see if the problem follows the speaker cab itself. If it doesn't follow the speaker, it's something upstream... damaged speaker wire or XLR cable, dirty/loose connector, amp on it's way out, accidental setting duff, etc
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
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Bruce Weldy
- Posts: 8642
- Joined: Fri Nov 27, 2009 11:37 am
- Location: New Braunfels, TX
Re: Melded array issues
And if it is indeed the speaker. Check the polarity of the melded array. You might have gotten the wiring backwards. to the array. In fact, check all of the wiring of the array. Since it's series/parallel, one wire in the wrong place can change the impedance and the output.Seth wrote: ↑Fri Jan 23, 2026 10:16 pm If you haven't already, the first thing I'd personally do is swap the speaker cabs one side to the other and see if the problem follows the speaker cab itself. If it doesn't follow the speaker, it's something upstream... damaged speaker wire or XLR cable, dirty/loose connector, amp on it's way out, accidental setting duff, etc
That said.....if you replace the array with CDs and use the 1.2k crossover option - you'll love it.
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."