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Matt Jordan:

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Art Welter:

--- Quote from: Matt Jordan on May 20, 2023, 01:09:56 AM ---Refurbing a club install, and found a blown driver in one of 8 JTR growlers on sub duty there. First smoked driver in nine years. The staff over at JTR tells me there are no direct replacement drivers any more and suggested a lab 12 as a drop in. Has anyone tried this? Thanks, ~Matt

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https://forums.prosoundweb.com/index.php/topic,124749.0.html
Jeff Permanian wrote the 2010 Growler handles "126.5 volt (2000w at 8ohm), logarithmic, sine wave sweep with 3db of compression."

A LAB 12 may "drop in", but has about half the power rating of the original Growler driver, and half the excursion and -6dB power handling of the later driver.
If the amps are actually delivering 126.5 volts, the LAB 12 would probably be toasted, they have around 3dB of thermal compression at around 50 volts.

Have you cut the driver open and determined that the voice coil actually smoked? Could be broken tinsel leads or a bad crimp connection.

Matt Jordan:
Nope, I have never done speaker surgery.

Have you cut the driver open and determined that the voice coil actually smoked? Could be broken tinsel leads or a bad crimp connection.

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--- Quote from: Art Welter on May 20, 2023, 02:45:12 PM ---https://forums.prosoundweb.com/index.php/topic,124749.0.html
Jeff Permanian wrote the 2010 Growler handles "126.5 volt (2000w at 8ohm), logarithmic, sine wave sweep with 3db of compression."

A LAB 12 may "drop in", but has about half the power rating of the original Growler driver, and half the excursion and -6dB power handling of the later driver.
If the amps are actually delivering 126.5 volts, the LAB 12 would probably be toasted, they have around 3dB of thermal compression at around 50 volts.

Have you cut the driver open and determined that the voice coil actually smoked? Could be broken tinsel leads or a bad crimp connection.

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Chris Grimshaw:
I think I'd try to find the biggest, meanest 12" sub driver I could. Faital Pro do a couple that might be worth a look. IIRC, Celestion have just released one as well.


Chris

Ivan Beaver:

--- Quote from: Chris Grimshaw on August 25, 2023, 09:01:46 AM ---I think I'd try to find the biggest, meanest 12" sub driver I could. Faital Pro do a couple that might be worth a look. IIRC, Celestion have just released one as well.


Chris

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That could be a big mistake.

Horns can be VERY picky about which drivers are used in them.  The design is around the driver and cabinet together.

Very often a "better" driver may give less performance, because it is not suited for the particular horn in question.

Often a "wimpier" driver will give better overall results.

I remember years ago trying to substitute a top of the line JBL driver in place of a stamped frame square magnet Eminance in a folded horn.

The much cheaper eminance walked all over the JBL.

But in a front loaded cabinet the results would be totally different.

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