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Author Topic: Does this exist?  (Read 3116 times)

Alex Rigodanzo

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Re: Does this exist?
« Reply #20 on: May 09, 2014, 01:30:55 am »

While Ray works his magic in the NOS 722 dept, my mind wanders off to the budget side of things.  What if I pull the horns and xovers out of our 4731's and build some 722 size cabs with said horns and a pair of Eminence Kappalite neo 12's?  Could sell the JBL 12's on feeBay to partly offset the cost of the Kappas.

Thanks for all the replies.  I was familiar with the EV QRX212.  The more I think about this, the more I want to build cabs with the horns and xovers from our existing JBL's and the Eminence 3012lf Neo drivers.  I don't expect it will equal the 722's, but I'm pretty sure they would meet our needs with a minimal investment (selling off the JBL 12's to defray the cost).  Plus I like rockin the home-built stuff!
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Thomas Le

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Alex Rigodanzo

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Re: Does this exist?
« Reply #22 on: May 09, 2014, 01:36:13 pm »

http://www.ebay.com/itm/JBL-SRX722-two-way-dual-12-speakers-2-/151297960723?pt=US_Pro_Audio_Speakers_Monitors&hash=item233a0fab13

Seems overpriced for a used pair though...

Apparently not as they sold in about 12 seconds.  That's what happens when a well liked product is discontinued without an equal replacement.
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Thomas Le

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Re: Does this exist?
« Reply #23 on: May 09, 2014, 02:14:27 pm »

There's another listing for 4 SR-X 4732's but they're 90x50 and apparently the drivers are not stock.

http://www.ebay.com/itm/JBL-SR-X-4732s-Qty-4-Four-/151284953060?pt=US_Pro_Audio_Speaker_Drivers_Horns&hash=item2339492fe4
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Alex Rigodanzo

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Re: Does this exist?
« Reply #24 on: May 09, 2014, 03:02:48 pm »

There's another listing for 4 SR-X 4732's but they're 90x50 and apparently the drivers are not stock.

http://www.ebay.com/itm/JBL-SR-X-4732s-Qty-4-Four-/151284953060?pt=US_Pro_Audio_Speaker_Drivers_Horns&hash=item2339492fe4

That's what we have now. Two 4731's and two 4732's.  Trying to downsize and especially lighten.
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Thomas Le

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Re: Does this exist?
« Reply #25 on: May 09, 2014, 03:31:29 pm »

Oops, completely forgot about the OP. Don't shoot me!


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Tom Roche

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Re: Does this exist?
« Reply #26 on: May 09, 2014, 04:09:05 pm »

I came across this advert on Craigslist for a pair of JBL SRX 722: http://eastidaho.craigslist.org/msg/4442211683.html (Jerome, Idaho)
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Alex Rigodanzo

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Re: Does this exist?
« Reply #27 on: May 09, 2014, 05:48:16 pm »

I came across this advert on Craigslist for a pair of JBL SRX 722: http://eastidaho.craigslist.org/msg/4442211683.html (Jerome, Idaho)

$1300 a piece is way out of our budget.  We could maybe manage a grand shipped per cab.  I'm really leaning strongly towards building our own.  Just have to run it by the guys this weekend (in particular the owner of the 4731's I want to cannibalize).
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David Morison

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Re: Does this exist?
« Reply #28 on: May 10, 2014, 12:20:24 pm »

What if I pull the horns and xovers out of our 4731's and build some 722 size cabs with said horns and a pair of Eminence Kappalite neo 12's?  Could sell the JBL 12's on feeBay to partly offset the cost of the Kappas.

You probably couldn't re-use the crossover as they should be optimised for the original 12" drivers - any other 12" will have at least slightly different frequency response and impedance curves, so you'd end up with a skewed response. If bi-amping, that wouldn't be a problem of course.
If you do go for the Kappalites, you probably want the 3012HO rather than the 3012LF you mention in a later post - the HO will get louder on less power, unless you plan on running without subs in which case you'd want the extended range of the LF model.
HTH,
David.
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Alex Rigodanzo

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Re: Does this exist?
« Reply #29 on: May 10, 2014, 01:34:05 pm »

You probably couldn't re-use the crossover as they should be optimised for the original 12" drivers - any other 12" will have at least slightly different frequency response and impedance curves, so you'd end up with a skewed response. If bi-amping, that wouldn't be a problem of course.
If you do go for the Kappalites, you probably want the 3012HO rather than the 3012LF you mention in a later post - the HO will get louder on less power, unless you plan on running without subs in which case you'd want the extended range of the LF model.
HTH,
David.

The HO has much too high sensitivity.  A pair of them would be 6-7db louder than the horn. The LF specs are closer to the JBL.  I do realize the xover is "optimized" for the original 12, but I doubt there is a significant enough difference to really be noticeable with a bar band unless you compared them side by side with other JBLs.  In your living room with flac files sure, but for live music I'll bet they would still sound better than any number of lower tier speakers (like the mPro and SF) that I've got perfectly satisfactory sound out of in the past.  Those old 4700 series aren't exactly "hi-fi" to begin with.
« Last Edit: May 10, 2014, 01:36:42 pm by Alex Rigodanzo »
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