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peizos in scoops????
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nuclearbass View Drop Down
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    Posted: 08 August 2012 at 6:44pm
isnt this pretty pointless?
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Tommes View Drop Down
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Have seen this a lot.
a jbl 4530 (scoop) with some sort of piezo in it.
doesn't sound good at all (understatement Smile), but it's a cheap solution if someone wants to go "fullrange" with one cab and doesn't have the money to do it the correct way.
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I have seen JBL bullets in 4530 15" scoops,when used with the extended range K or E 130 driver.

Of course this is a rather specialised driver,with a very light cone,and could be crossed to the bullet at 3khz,but to plonk a piezo in with a standard bass driver is just silly.




Edited by jbl_man - 08 August 2012 at 6:55pm
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Adam_Iron_Horse View Drop Down
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Theyre nice scoops those... a local sound bought 4 of em off here and loaded them with some eminence drivers sound great really punchy!

bit off topic but i thought id just throw that out there...
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geez View Drop Down
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piezo's are suitable for some types of bins LOL
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nuclearbass View Drop Down
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Originally posted by geez geez wrote:

piezo's are suitable for some types of bins LOL





Rubbish??
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Elliot Thompson View Drop Down
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Originally posted by jbl_man jbl_man wrote:

I have seen JBL bullets in 4530 15" scoops,when used with the extended range K or E 130 driver.

Of course this is a rather specialised driver,with a very light cone,and could be crossed to the bullet at 3khz,but to plonk a piezo in with a standard bass driver is just silly.



I would imagine the majority of those who tote around scoops don't know that the design was never aimed to be a bass bin but a full-range cabinet. 


Best Regards, 
Elliot Thompson
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Requiem View Drop Down
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ive seen this in some w-bins too lol....
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Dub Specialist View Drop Down
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everyman does his thing a little way different as Mr Dunkley says..Smile not for me tho...

but lets not forget the eminence design Scoop was with a hf bullet too..

thay might be emmys thay look kinda wide?
probably built them with the orignal plan then thought sod it im gonna put a next one the orther side?LOL
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Originally posted by Elliot Thompson Elliot Thompson wrote:

Originally posted by jbl_man jbl_man wrote:

I have seen JBL bullets in 4530 15" scoops,when used with the extended range K or E 130 driver.

Of course this is a rather specialised driver,with a very light cone,and could be crossed to the bullet at 3khz,but to plonk a piezo in with a standard bass driver is just silly.



I would imagine the majority of those who tote around scoops don't know that the design was never aimed to be a bass bin but a full-range cabinet. 


Best Regards, 




^ this
have a look at some of the older jbl stuff.

i used to own a couple of ancient ported 15 inch w bins by EV. they had a 1 inch horn and a baby bum tweeter in the front of em, and you would be suprised how good they sounded. that said,i would never build a full range cab in this way.

cheers
dave

Edit: that looks like an old E130ish driver, with its alu dust cap. realy good drivers which in their day were considered more midrange drivers than what current conceptions of a scoop driver would lead to you believe. these drivers are great in foldback. in australia there are a couple of old cabs (the DLP (2x15inch) and SLP (1x15inch, Single Low Profile) foldback wedges, build by Jands i think. these old dinosaurs would realy shock you. I could be wrong, they might be old clair bros cabs, and much more international than i think, but i dont realy know their origin. they were loaded with JBL E drivers. E140s i think.


Edited by thepersonunknown - 09 August 2012 at 12:57am
They keep telling me life is short, but its the longest thing ive ever done!!!
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Tommes View Drop Down
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@ Elliot Thompson
I'm not an expert on this, but according to jbl the 4530 acts as a direct radiator above 150Hz, which would suggest that you could go high with these cabs, so this could match what you are saying about horns and full range.
But they also claim that the highest recommended crossover is 800Hz, even with a E140.
So there must be a reason why they claim this?
Anyway, as said, have heard several version of these with some sort of piezo or tweeter and they always sounded like rubbish, like there was more missign than present Smile
 
@ Adam
I have been using these scoops for many years now, loaded with JBL 2226.
+ they sound pretty good
+ you only need one driver to get some serious output
+ can be used just about anywhere for just about anything
- they are very big (and heavy)
- they don't go low, unless you stack more of them
 
There are people out there who say that they are even better with a RCF (15lp200ak).
But never heard these...
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levyte357- View Drop Down
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Points: 8128 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 09 August 2012 at 7:47am
Originally posted by nuclearbass nuclearbass wrote:

isnt this pretty pointless?



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