steelwill
has anybody ever heard or used these speakers?
i have a chance to buy a set on the low low. but i won't be able to listen to them.
pros & cons ,if you have any. thanks.
i have a chance to buy a set on the low low. but i won't be able to listen to them.
pros & cons ,if you have any. thanks.
Mensajes Sun 06 Dec 09 @ 7:49 pm
skyblueent
My friend has a set in his garage at monitors. They sound pretty clear. But they dont have holes for polls so they cant go above there head. So u might want to conccider what you are going too use them for.
Mensajes Sun 06 Dec 09 @ 8:48 pm
Dazmax
Hi mate
I use the JBL JRX series speakers for most of my PA rig. The JRX twin 15 units are prety good but are more suited to install use. Bear in mind that you have to lift them. If you are looking for a Djing setup My suggestion would be to use a pair of 115's or 112's with poles or stands and a pair of 118 bass bins. Portability is always an issue, the twin 15's are heavy and cumbersome to move arround.
BTW always use the Speakon sockets on them as the 1/4" Jack sockets are none too sturdy.
Daz
I use the JBL JRX series speakers for most of my PA rig. The JRX twin 15 units are prety good but are more suited to install use. Bear in mind that you have to lift them. If you are looking for a Djing setup My suggestion would be to use a pair of 115's or 112's with poles or stands and a pair of 118 bass bins. Portability is always an issue, the twin 15's are heavy and cumbersome to move arround.
BTW always use the Speakon sockets on them as the 1/4" Jack sockets are none too sturdy.
Daz
Mensajes Sun 06 Dec 09 @ 9:17 pm
Charlie Wilson
1/4 jack a probably plastic (I just got a shiver down my spine thinking about it)
Mensajes Mon 07 Dec 09 @ 2:23 am
djcity
I own a pair.
Pretty decent speaker but hard for "me" to use as I am a mobile dj and a club dj.
They sound pretty good. Power handling is only decent at 500w. It's comfortable running with 500w into it. it's still somewhat comfortable with 600w but I would go no further.
Bass output is good in very small rooms and only decent in medium rooms, not good in large rooms.
Best way to use these speakers is to have them stacked (standing) on top of dub 18" bass cabs. This way the highs are over your crowds heads and the sound is not getting blocked.
The problem with dub 15's is that they sit on the floor and high frequencies are directional. anyone standing in front of them stops the sound. Thats why it's always good to have your highs over the crowds heads, hence speaker stands with single 15's on em or double 15's like the jrx stacked on top of bass cabs.
Overall.......good speaker. Not great, but good.
Hope this helps.
P.S.
If you can get em for LOW price...Go for it.
Better to have and not need than to need and not have.
Pretty decent speaker but hard for "me" to use as I am a mobile dj and a club dj.
They sound pretty good. Power handling is only decent at 500w. It's comfortable running with 500w into it. it's still somewhat comfortable with 600w but I would go no further.
Bass output is good in very small rooms and only decent in medium rooms, not good in large rooms.
Best way to use these speakers is to have them stacked (standing) on top of dub 18" bass cabs. This way the highs are over your crowds heads and the sound is not getting blocked.
The problem with dub 15's is that they sit on the floor and high frequencies are directional. anyone standing in front of them stops the sound. Thats why it's always good to have your highs over the crowds heads, hence speaker stands with single 15's on em or double 15's like the jrx stacked on top of bass cabs.
Overall.......good speaker. Not great, but good.
Hope this helps.
P.S.
If you can get em for LOW price...Go for it.
Better to have and not need than to need and not have.
Mensajes Mon 07 Dec 09 @ 12:00 pm
Dazmax
Exactly my point City.
I find that for smaller gigs the two single 18' bass units allong with a pair of JRX 112 mid tops mounted on poles works very nicely.
The JRX 112 and 115 both have dual angle top hets so you can decide wether to fire strait up and over or direct down at an angle.
The twin 15" units ar best left to install use.
It has always been my experience with JBL equipment that it can take a beating. As long as you feed them clean undistorted signals. The 112's are rated at a rather pathetic sounding 250W but this rating must be read in context. JBL submit all their speaker models to a 24hr torture test and rate them based on this test. The 112s are also rated up to 1000W music power. Don't confuse their ratings with all the BS power claims you see on the units from the cheap seats they realy mean what they say.
I run a set of 8 JRX118s subs with 8 JRX115s as mid tops for front of house, 2 JRX118s and 10 JRX112s for stage monitoring and side fill. I dont care how many you have 15" drivers (Unless horn loaded) just cannot do the realy low, building rattling bass that 18s have no problem with.
I have never blown a driver, not even a horn. All my kit is now driven from Crown XTi series (2000 and 4000) amps and works far better than anything else I have come across at the price.
With the exception of the poor quality 1/4" jack sockets ( I have removed and replaced them all with additional Speakon sockets) It is hard to find better at the price.
Don't get me wrong there are better speakers out there but Not At The Price.
Daz
I find that for smaller gigs the two single 18' bass units allong with a pair of JRX 112 mid tops mounted on poles works very nicely.
The JRX 112 and 115 both have dual angle top hets so you can decide wether to fire strait up and over or direct down at an angle.
The twin 15" units ar best left to install use.
It has always been my experience with JBL equipment that it can take a beating. As long as you feed them clean undistorted signals. The 112's are rated at a rather pathetic sounding 250W but this rating must be read in context. JBL submit all their speaker models to a 24hr torture test and rate them based on this test. The 112s are also rated up to 1000W music power. Don't confuse their ratings with all the BS power claims you see on the units from the cheap seats they realy mean what they say.
I run a set of 8 JRX118s subs with 8 JRX115s as mid tops for front of house, 2 JRX118s and 10 JRX112s for stage monitoring and side fill. I dont care how many you have 15" drivers (Unless horn loaded) just cannot do the realy low, building rattling bass that 18s have no problem with.
I have never blown a driver, not even a horn. All my kit is now driven from Crown XTi series (2000 and 4000) amps and works far better than anything else I have come across at the price.
With the exception of the poor quality 1/4" jack sockets ( I have removed and replaced them all with additional Speakon sockets) It is hard to find better at the price.
Don't get me wrong there are better speakers out there but Not At The Price.
Daz
Mensajes Mon 07 Dec 09 @ 3:59 pm
steelwill
wow! good stuff. i was wondering, is that horn all i would need for a medium room?
looks kinda small, i have allways been a peavy man myself. i'm mobile and i have a single 18'' i would sit them on top of.
most of my speakers have black widows. they drop ''real low'' with little effort. btw i spin old school hip hop & r&b with a small
sampling of the top 20 of whatever's hot. i like the look of those jbl's. i went ahead and got them. you guys rock. (nothing like firsthand
expierience before you buy something:) thanks. - steel will - ''blazing da 1's & 2's''
looks kinda small, i have allways been a peavy man myself. i'm mobile and i have a single 18'' i would sit them on top of.
most of my speakers have black widows. they drop ''real low'' with little effort. btw i spin old school hip hop & r&b with a small
sampling of the top 20 of whatever's hot. i like the look of those jbl's. i went ahead and got them. you guys rock. (nothing like firsthand
expierience before you buy something:) thanks. - steel will - ''blazing da 1's & 2's''
Mensajes Mon 07 Dec 09 @ 4:24 pm
Dazmax
I have to start with a correction the test JBL do is 100hrs not 24.
The twin 15 units are driven slightly differently in that the lower 15 acts as a built in sub and the upper 15 covers bass mid. the horns are actualy a 2" unit with a 1" exit horn. They are very efficient and in MHO produce a far crisper top end than the Peavey 4" XT series horns. The peaveys are great for mid but crap up top. I have used both and used to have a peavey set up but changed to the JBLs because a. I loved the sound and b. I could lift them. and c. they were way cheaper than the Peaveys for similar performance.
FYI you will not need to cross over the JBLs run them full range. Allong with the 18s they will rock the house.
Have fun.
Daz
The twin 15 units are driven slightly differently in that the lower 15 acts as a built in sub and the upper 15 covers bass mid. the horns are actualy a 2" unit with a 1" exit horn. They are very efficient and in MHO produce a far crisper top end than the Peavey 4" XT series horns. The peaveys are great for mid but crap up top. I have used both and used to have a peavey set up but changed to the JBLs because a. I loved the sound and b. I could lift them. and c. they were way cheaper than the Peaveys for similar performance.
FYI you will not need to cross over the JBLs run them full range. Allong with the 18s they will rock the house.
Have fun.
Daz
Mensajes Mon 07 Dec 09 @ 4:46 pm
steelwill
thanks Dazmax, that's good to know about the lower 15'' speaker. i'll be trying these out friday without the 18'' plugged in but will have them availabe just in case. like that 48 channel board in your profile:)
Mensajes Mon 07 Dec 09 @ 6:12 pm
Charlie Wilson
Don't confuse their ratings with all the BS power claims you see on the units from the cheap seats, they realy mean what they say.
Only an idiot would believe what an unbranded speaker would claim to be! but how do JBL's ratings comparing with other good brands like RCF, FBT etc They seem a bit low, I mean 250w and 500w from a dual unit. I know there cheap but RCF are pushing 750 from a single 12" and horn.
Another thing, when using dual 15" without having them on stage or having them on an 18 you'll find that people use them as a stool for their drinks!
Only an idiot would believe what an unbranded speaker would claim to be! but how do JBL's ratings comparing with other good brands like RCF, FBT etc They seem a bit low, I mean 250w and 500w from a dual unit. I know there cheap but RCF are pushing 750 from a single 12" and horn.
Another thing, when using dual 15" without having them on stage or having them on an 18 you'll find that people use them as a stool for their drinks!
Mensajes Tue 08 Dec 09 @ 3:00 am
Dazmax
Hi Charlie
Best said by JBL themselves.
At JBL Pro, we subject our designs to the most rigorous and demanding testing in the industry. As a result, the power rating specification of a JBL Professional product may be lower than that of a competitive speaker which actually has less power handling capability.
JBL tests speaker systems as systems. Some competitive speaker systems are rated based on the power rating of the individual transducers. Actually, the power handling of each individual component doesn't tell the entire story. When a transducer is installed in an enclosure, it may not be able to dissipate heat as well as it did outside of a box. Or the cross-over network might fail long before the transducers. When you select a JBL speaker system, you know that the design has been tested as a complete system.
JBL tests speaker designs with long term testing at high power. A speaker system typically doesn't reach its maximum operating temperature for at least 2 or more hours. Yet some manufacturers make power handling claims based on mere minutes of testing. At JBL, our power tests subject each speaker design to the kind of stress and strain it will get in years of actual use.
JBL uses the IEC spectrum for testing speakers. The IEC (International Electrotechnical Commission) has established a standard for a loudspeaker test signal. This method uses shaped noise in a specified frequency range (50 Hz - 5 kHz), a specified high and low-pass filter slope, and a specified "crest factor" (the ratio between the average and peak signal level). IEC shaped noise places greater demands on a speaker than real music.
I can only go by my experience with these speakers. I am using Crown XTI 2000 and 4000 amps with them and frequently drive them with music powers way in excess of the IEC rating and have yet to blow one up. I used to end up replacing ths baskets on my Peavey BW and Scorpion drivers on occasion and would say that the build quality of the drvers is not as good as the JBL units. It is difficult to make comparrisons these days as not all manufacturers use the same test standards. I found the RCF drivers to be very good as well (Mackie use RCF drivers in many of their speaker cabs)
Good point about the drinks stand.
Daz
Best said by JBL themselves.
At JBL Pro, we subject our designs to the most rigorous and demanding testing in the industry. As a result, the power rating specification of a JBL Professional product may be lower than that of a competitive speaker which actually has less power handling capability.
JBL tests speaker systems as systems. Some competitive speaker systems are rated based on the power rating of the individual transducers. Actually, the power handling of each individual component doesn't tell the entire story. When a transducer is installed in an enclosure, it may not be able to dissipate heat as well as it did outside of a box. Or the cross-over network might fail long before the transducers. When you select a JBL speaker system, you know that the design has been tested as a complete system.
JBL tests speaker designs with long term testing at high power. A speaker system typically doesn't reach its maximum operating temperature for at least 2 or more hours. Yet some manufacturers make power handling claims based on mere minutes of testing. At JBL, our power tests subject each speaker design to the kind of stress and strain it will get in years of actual use.
JBL uses the IEC spectrum for testing speakers. The IEC (International Electrotechnical Commission) has established a standard for a loudspeaker test signal. This method uses shaped noise in a specified frequency range (50 Hz - 5 kHz), a specified high and low-pass filter slope, and a specified "crest factor" (the ratio between the average and peak signal level). IEC shaped noise places greater demands on a speaker than real music.
I can only go by my experience with these speakers. I am using Crown XTI 2000 and 4000 amps with them and frequently drive them with music powers way in excess of the IEC rating and have yet to blow one up. I used to end up replacing ths baskets on my Peavey BW and Scorpion drivers on occasion and would say that the build quality of the drvers is not as good as the JBL units. It is difficult to make comparrisons these days as not all manufacturers use the same test standards. I found the RCF drivers to be very good as well (Mackie use RCF drivers in many of their speaker cabs)
Good point about the drinks stand.
Daz
Mensajes Tue 08 Dec 09 @ 9:00 am
Charlie Wilson
And in the old day's you would sometimes see an ash tray as well!
Mensajes Tue 08 Dec 09 @ 9:14 am
kjdj99
An upgrade to the JBL entry level JRX the MRX or SRX lines will blow your mind! And alot less weight but at a cost $$$.
Mensajes Fri 11 Dec 09 @ 7:37 am