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Author Topic: JTR vs. JBL SRX or maybe DSL  (Read 12399 times)

Ivan Beaver

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Re: JTR vs. JBL SRX or maybe DSL
« Reply #40 on: August 01, 2017, 07:31:33 am »

Thank you Ivan. This gives me more confidence in my ability to successfully deploy the Danley system. The pricing I got on the DNA20K4PRO is very reasonable. I have access to 230v power at most of the outdoor venues I play.
You don't have to run the DNA20K off of 208-240V power.

It runs just fine off of 120V.  However it does pull pull more current at 120V  than at 240V.

For extreme situations, I highly suggest 240V, but in most cases, 120V (with a good supply) works just fine.

We keep L6-20 to Edison plugs lying around for normal uses.
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Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

David Winners

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Re: JTR vs. JBL SRX or maybe DSL
« Reply #41 on: August 01, 2017, 08:47:58 am »

You don't have to run the DNA20K off of 208-240V power.

It runs just fine off of 120V.  However it does pull pull more current at 120V  than at 240V.

For extreme situations, I highly suggest 240V, but in most cases, 120V (with a good supply) works just fine.

We keep L6-20 to Edison plugs lying around for normal uses.

Thanks Ivan. I completely understand that. 

I was just stating that in most situations where I would need a big dog amp, I have the mains supply to provide the necessary power. At the indoor venues or smaller outdoor shows I play, I wouldn't hesitate to run on 120v power.

I'm still working my way through the manual for the DNA amps.  They are very flexible and pack a lot of DSP, features and power into 2 rack spaces.

The External Breaker Protection feature would be nice.
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David Winners

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Re: JTR vs. JBL SRX or maybe DSL
« Reply #42 on: August 01, 2017, 09:11:18 am »

I've been using JTR stuff for the past year, primarily as a solo (or 2-man team) operator. We went from EAW gear to JTR and couldn't be happier.

Benefits to the JTR Noesis 3TX:
- Super versatile and scalable
- Lightweight (3TX weigh 49-pounds, real world)
- Clarity and accuracy is outstanding
- Minimal processing required
- Good match with 1-2 OS per side
- Extremely overbuilt - the crossovers are ridiculous/amazing
- 90/60 or 60/40 horn options; easily changed


General JTR benefits:
- Small truck pack (4 OS, 2 3TX, monitors, amp racks, mic stands, etc all fit in 5x10 trailer)
- Entire system is easily managed by one person (OS casters are perfectly placed so rolling them around is a breeze)
- Unparalleled support from Jeff
- Under-hyped and always over-deliver

I spent a day working with Jeff and taking measurements to fully calibrate our rig (1 3TX over 2 OS per side) and I was amazed by how little processing was required. We process with a dbx VENU360 and there are just a few (3?) narrow dips in the PEQ (I can't recall exactly where, but can look them up). No trickery or magic required to make things sound smooth and clear.

We run our JTR rig with PL380 amplifiers - 1 in stereo for the 4-ohm 3TX and 1 bridged per two of the 8-ohm OS (presents 4-ohm load to PL380).

In this config with 90x60 horns, I ran an event at a large outdoor brewery (screenshot below) with about 1500-1800 in attendance. People were generally contained within the area highlighted by the red line. Stage was located where the green dot sits. I got some benefit of using the building as a reflective surface, for sure.

I walked out 200 feet from the stage and could still hear things crystal clear. The event wasn't meant to be a rock concert, but it did have 2 bands (country/Americana) and folks were there to enjoy the music. At 100-feet from the stage, it was more than enough volume that people were able to dance and feel the music. If my memory serves, I was at around 95dB C-weighted at 100-feet. I had the 3TX raised up so the bases were about 7-feet from the ground.

I also run this rig indoors and literally have it idling along. The efficiency and power is truly amazing. With most small indoor gigs (less than 400 people), I usually run a single OS. If I'm really trying to "wow" people, I'll use 2, but they just loaf along in that scenario.

Regarding covers - I bought the Undercover NYC covers for the 3TX. Probably not necessary as everything is quite protected from Jeff, but better to be safe than sorry. The OS don't need any type of weather-proofing. The Line-X coating is ridiculous on them.

I'd call Jeff and ask him for suggestions on rig sizing, and he'll be more than honest with you about what would work best.

Thank you for all the information Steve! I really appreciate the time you took to type all this out. Real world usage is such valuable information.
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Ryan C. Davis

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Re: JTR vs. JBL SRX or maybe DSL
« Reply #43 on: August 01, 2017, 12:23:46 pm »

You don't have to run the DNA20K off of 208-240V power.

It runs just fine off of 120V.  However it does pull pull more current at 120V  than at 240V.

For extreme situations, I highly suggest 240V, but in most cases, 120V (with a good supply) works just fine.

We keep L6-20 to Edison plugs lying around for normal uses.

I've never run mine off of 220 it's done just fine on a 20A 120V outlet every time I've used mine. It brings me a little comfort when the first thing it says when powering up is "measuring mains voltage". MMMmmm love that amp.. 
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Ryan Davis

Ivan Beaver

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Re: JTR vs. JBL SRX or maybe DSL
« Reply #44 on: August 01, 2017, 12:25:22 pm »

Thanks Ivan. I completely understand that. 

I was just stating that in most situations where I would need a big dog amp, I have the mains supply to provide the necessary power. At the indoor venues or smaller outdoor shows I play, I wouldn't hesitate to run on 120v power.

I'm still working my way through the manual for the DNA amps.  They are very flexible and pack a lot of DSP, features and power into 2 rack spaces.

The External Breaker Protection feature would be nice.

The EDP (external Breaker Protection) is a nice feature that allows you do dial back the maximum current the amp can draw from the source.

Of course, when it kicks in, the output levels also drop.

But at least they don't drop "all the way" as when the breaker would blow.

It is more important to keep the show going on, than to have a couple extra dB and then no sound.

I always set it for a couple of amps lower than what the breaker is.  Just to give a little bit of "safety margin".
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A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

David Winners

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Re: JTR vs. JBL SRX or maybe DSL
« Reply #45 on: August 01, 2017, 12:33:18 pm »

The EDP (external Breaker Protection) is a nice feature that allows you do dial back the maximum current the amp can draw from the source.

Of course, when it kicks in, the output levels also drop.

But at least they don't drop "all the way" as when the breaker would blow.

It is more important to keep the show going on, than to have a couple extra dB and then no sound.

I always set it for a couple of amps lower than what the breaker is.  Just to give a little bit of "safety margin".

I agree. Tripped breakers are hard on the show and gear. Lots of work to safely power back up.
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ProSoundWeb Community

Re: JTR vs. JBL SRX or maybe DSL
« Reply #45 on: August 01, 2017, 12:33:18 pm »


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