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Valued Contributor
RoadRanger
Posts: 9,713
Registered: ‎02-12-2009

Re: 4 JBL SR4719x's - what's my best bet for amplification?


ZEW wrote:

That's a great price on all that and light as hell too!  What makes  you such a fan of peavey?


Nothing really - if someone else made an equivalent amp for less I'd have bought those. The NU3000 I mentioned really only has about 2400 "real watts" but that happens to match up with the maximum recommended power for my Danleys and they "wilt" if pushed too hard so can't really burn them out  .

"We Have Met the Enemy and He is Us" - Walt Kelly

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Super Contributor
Posts: 1,121
Registered: ‎09-29-2011

Re: 4 JBL SR4719x's - what's my best bet for amplification?

XTI 6000 seems like a good match. 

SR4719 manual states 1200 watts power handling. (is this RMS?)

 @ 4 ohms so parallel to 2 ohm load you'd want to give them 2400 WPC, but takes many bucks before the bang so...

 

 

Myrecommendationforbangforthebuck (includinggoingused) isRMXseriesifweightisnotanissue

 

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Super Contributor
jlb
Posts: 705
Registered: ‎02-24-2011

Re: 4 JBL SR4719x's - what's my best bet for amplification?

You can pick up refurb ITech 4000's with a one year warranty for around $1200. I run 718's and 728's with these amps. Good limiting/processing in the ITechs.
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Valued Contributor
RoadRanger
Posts: 9,713
Registered: ‎02-12-2009

Re: 4 JBL SR4719x's - what's my best bet for amplification?


ZEW wrote:

its set at 30 or 40, i can't remember.  i'd have to check.


If at 30 try 40 if you are looking for more punch out of them. Do you have the amp attenuenator knobs fully up? Also if you are freaking out when the limit light on the amps flash, don't. You can go about 6db past that before compression becomes a problem and it's like doubling your subs for free  . Only a good idea if you're powering the subs around their RMS rating (which is your case). In the bad old days we'd run our 65 lb 800w Peavey CS800's with the limit lights on solid all night  .

"We Have Met the Enemy and He is Us" - Walt Kelly

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Super Contributor
Posts: 3,074
Registered: ‎06-30-2004

Re: 4 JBL SR4719x's - what's my best bet for amplification?


sibyrnes wrote:
Good, factual answer, Axisplayer, but I don't know, would it really be so bad for one, regardless of post count, to be a little less hostile to new posters? Just sayin'.....

I don't go out of my way to be hostile to new (or old) posters. I tend to be a pretty straight forward, outspoken type of person and it carries over here. I don't suffer fools well, but I suffer temper tantrums even less. Sorry to folks if I sound angry to them, because I am actually a mild mannered, even keel sort of person, but I do speak my mind easily.

Just remember, I don't antagonize new posters...it is everyone!!!!!  <- tongue in cheek snarky remark.

I will try to work on it....some.

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Valued Contributor
RoadRanger
Posts: 9,713
Registered: ‎02-12-2009

Re: 4 JBL SR4719x's - what's my best bet for amplification?

[ Edited ]

Hey, it's no fun bein' our age if you can't be a bit ornery and cantankerous  .

"We Have Met the Enemy and He is Us" - Walt Kelly

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Super Contributor
Posts: 67,903
Registered: ‎08-23-2001

Re: 4 JBL SR4719x's - what's my best bet for amplification?

Yes, unless he wants to lighten up. Otherwise he is sitting fine.

tlbonehead@yahoo.com
www.myspace.com/tbone_tommy
-For Sale:
-set of GFS Dream 90s- gold and black pearl- $40 shipped in the cont. US
-(2) Celestion G12M-70 16 ohm guitar speakers in good condition $40 ea. + shipping.
- Vox VT15 Valvetronix very clean - $85 + shipping
- Hughes Kettner Edition Tube 20 (the early Voxy sounding one) Sounds & looks good. $250 + shipping. SOLD
- Crate Palomino V8 - 10" Celestion - Very clean - on Ebay (sold)
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sibyrnes
Posts: 552
Registered: ‎05-24-2011

Re: 4 JBL SR4719x's - what's my best bet for amplification?

[ Edited ]

RoadRanger wrote:

Hey, it's no fun bein' our age if you can't be a bit ornery and cantankerous  .

 


Yeah, I'm there and painfully aware of it!  But, I try to treat people on web the same way I would if I were face to face with them.  Some of the coments I see in these forums would result in a bitch slap in the real world:smileywink:

 

Anyway, back on subject, I would try to find a couple of used QSC PL 4's.  They will get you about 1400 watts RMS per cabinet at 4 ohms.  They are a serious, pro  grade amp that can be found for a decent price.  I have used them with JBL SR series cabinets for over ten years now and they have been flawless. 

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Valued Contributor
agedhorse
Posts: 42,794
Registered: ‎12-25-2001

Re: 4 JBL SR4719x's - what's my best bet for amplification?

Ok, a couple of comments from another old trouper who dosn't seem to suffer fools well...

Those cabinets use 2241-G drivers, they are good for 600 watts RMS and with proper high pass filtering and some common sense can be powered reasonably safely up to about 1000 watts. I do in fact have a lot of experience with this driver series as I was responsible for a theatre chain that had maybe several thousand of them and handled all of the reconing here at my shop. I also was certified at the JBL factory service school in ~1978.

The amp you have now is fine the way you are using them, plenty big and maybe even a little too big but you can always drop the limiter down a dB or so below the amp's limit point and gain some reliability in the event of a momentary loss of good judgement. With this power level, be sure the easy-over function is off on the limiter module in the 260's sub output band.

As far as smart ass comments, I think I have pretty much used them up in the power distribution thread, so RR, carry on...

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Valued Contributor
agedhorse
Posts: 42,794
Registered: ‎12-25-2001

Re: 4 JBL SR4719x's - what's my best bet for amplification?


sibyrnes wrote:

RoadRanger wrote:

Hey, it's no fun bein' our age if you can't be a bit ornery and cantankerous  .

 


Anyway, back on subject, I would try to find a couple of used QSC PL 4's.  They will get you about 1400 watts RMS per cabinet at 4 ohms.  They are a serious, pro  grade amp that can be found for a decent price.  I have used them with JBL SR series cabinets for over ten years now and they have been flawless. 


But, you are not a DJ, playing compressed LF material, with the typical lack of control as the night goes on, and do you have the 4 ohm single 18 version? If you are using them on the 218, 4 ohm cabinet, that's a much better match powerwise.

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Super Contributor
sibyrnes
Posts: 552
Registered: ‎05-24-2011

Re: 4 JBL SR4719x's - what's my best bet for amplification?

[ Edited ]
"Ok, a couple of comments from another old trouper who dosn't seem to suffer fools well..."

4719x are a dual 18 cab. And I'm an old trooper that questions your definition of "fool". I don't think a new poster asking a legitimate question should be considered a fool. It makes me wonder who really is playing the fool.
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Super Contributor
ChiroVette
Posts: 995
Registered: ‎05-08-2012

Re: 4 JBL SR4719x's - what's my best bet for amplification?

[ Edited ]

sibyrnes wrote:
"Ok, a couple of comments from another old trouper who dosn't seem to suffer fools well..."

4719x are a dual 18 cab. And I'm an old trooper that questions your definition of "fool". I don't think a new poster asking a legitimate question should be considered a fool. It makes me wonder who really is playing the fool.

Oh come on now. Nobody was calling him a fool or being particularly nasty. RR answered his question in a way that was both informative and phrased in a light, flippant way, and then the OP got a little pissy. Nobody, not the people responding to the OP or the OP himself got out of control. I think the OP just took RR the wrong way and some of us, myself included, had a little fun, but everyone kept it civil. lol Even agedhorse wasn't calling him a fool, just saying he doesn't suffer fools well.

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Valued Contributor
RoadRanger
Posts: 9,713
Registered: ‎02-12-2009

Re: 4 JBL SR4719x's - what's my best bet for amplification?


agedhorse wrote:

As far as smart ass comments, I think I have pretty much used them up in the power distribution thread, so RR, carry on...


I was jus' fillin' in for yah  .

"We Have Met the Enemy and He is Us" - Walt Kelly

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Super Contributor
lonotes
Posts: 1,658
Registered: ‎05-01-2007

Re: 4 JBL SR4719x's - what's my best bet for amplification?

I believe it's the new layout making people crazy. :smileymad:

Security Officers have been trained to not touch the service monkey
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Valued Contributor
RoadRanger
Posts: 9,713
Registered: ‎02-12-2009

Re: 4 JBL SR4719x's - what's my best bet for amplification?


lonotes wrote:

I believe it's the new layout making people crazy. :smileymad:


"We Have Met the Enemy and He is Us" - Walt Kelly

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ZEW
Contributor
ZEW
Posts: 33
Registered: ‎01-31-2013

Re: 4 JBL SR4719x's - what's my best bet for amplification?


RoadRanger wrote:

ZEW wrote:

its set at 30 or 40, i can't remember.  i'd have to check.


If at 30 try 40 if you are looking for more punch out of them. Do you have the amp attenuenator knobs fully up? Also if you are freaking out when the limit light on the amps flash, don't. You can go about 6db past that before compression becomes a problem and it's like doubling your subs for free  . Only a good idea if you're powering the subs around their RMS rating (which is your case). In the bad old days we'd run our 65 lb 800w Peavey CS800's with the limit lights on solid all night  .


Not looking to be punchy.  I'll have to check the setting.  As i said, this rig mainly plays drum and bass electronic music.  So it needs to be boomy.  Knobs are about 2/3 of the way up maybe 3/4.  I do freak out when i see the the limit lights flash.  I don't want to smoke these subs.  They're my babies :smileywink:

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ZEW
Contributor
ZEW
Posts: 33
Registered: ‎01-31-2013

Re: 4 JBL SR4719x's - what's my best bet for amplification?


agedhorse wrote:

Ok, a couple of comments from another old trouper who dosn't seem to suffer fools well...

Those cabinets use 2241-G drivers, they are good for 600 watts RMS and with proper high pass filtering and some common sense can be powered reasonably safely up to about 1000 watts. I do in fact have a lot of experience with this driver series as I was responsible for a theatre chain that had maybe several thousand of them and handled all of the reconing here at my shop. I also was certified at the JBL factory service school in ~1978.

The amp you have now is fine the way you are using them, plenty big and maybe even a little too big but you can always drop the limiter down a dB or so below the amp's limit point and gain some reliability in the event of a momentary loss of good judgement. With this power level, be sure the easy-over function is off on the limiter module in the 260's sub output band.

As far as smart ass comments, I think I have pretty much used them up in the power distribution thread, so RR, carry on...


1978???  All depending on the month... I was 1 year old :smileywink:

The cabs actually house 2 2241HPL's.  They're dual 8 ohm wired in parallel for a 4 ohm load at the speakon connector.  I'll have to double check the "easy-over" function.  Not sure if i remember that one.  It's been a while since I messed with the 260.  It's a work in progress for me... There's times when I think things just dont sound right, so I start a new configuration and spend hours tweaking and then I just go back to my original config.

Is there a good online howto on the 260?  I'm not very versed in it and can definitely use some schooling.

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Valued Contributor
RoadRanger
Posts: 9,713
Registered: ‎02-12-2009

Re: 4 JBL SR4719x's - what's my best bet for amplification?

[ Edited ]

The easiest way to set up a 260 is to set it on a shelf when you replace it with a DBX 223  .

"We Have Met the Enemy and He is Us" - Walt Kelly

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Super Contributor
Posts: 1,121
Registered: ‎09-29-2011

Re: 4 JBL SR4719x's - what's my best bet for amplification?

Don't forget the polish the Drive rack once in a while so you can brag you have one. I like RR suggestions, they have humor in them and offer real world experience and I'm pretty sure his name is not DICK. ha

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ZEW
Contributor
ZEW
Posts: 33
Registered: ‎01-31-2013

Re: 4 JBL SR4719x's - what's my best bet for amplification?


RoadRanger wrote:

The easiest way to set up a 260 is to set it on a shelf when you replace it with a DBX 223  .


lol... i knew this would be the reply.  everyone hates em, eh?  i'd never shelf it... i'd just sell it and make my money back

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