JBL JRX Brochure Brochure030207 Low
User Manual: JBL JBL - Manuals+
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JRX100 delivers the performance and prestige JBL is known for at
an affordable price point. To meet these conflicting design goals, we
looked at every element of the speaker system design. We kept
everything that makes a speaker perform and sound its best and we
eliminated things that don’t. With performance, value and popular price
points, we are going to be building a lot of JRX100 speakers. This
means we can apply efficient, high-volume production methods and
purchase materials at the lowest cost. That’s how JRX100 delivers
unprecedented value.
Just
What
Need
You
PRODUCTS AND SPECS
www.jblpro.com • 8500 Balboa Boulevard, • Northridge, CA 91329
© 2004 JBL Professional
This trapezoidal, 15” speaker system is at home in live sound,
dance music, and speech reinforcement. It’s equipped with low
and high-frequency drivers built in our Northridge, California fac-
tory. Features include the Dual-Angle, 35mm pole mount socket as
well as Nuetrik®SpeakOn®and 1/4” input connectors.
An installation version (JRX115i) is also available. Three M10 eye-
bolts and threaded brackets replace the feet, pole socket, and
handles of the portable JRX115.
Frequency Range1(-10 dB): 38 Hz - 16 kHz
Frequency Response1(±3 dB): 50 Hz – 12.5 kHz
Sensitivity (1w/1m): 98 dB SPL
Nominal Impedance: 8 Ω
Power Capacity2: 250 watts
Peak Power Capacity2: 1000 watts
Recommended Amplifier Power: 250 watts to 500 watts into 8 Ω
Maximum SPL: 128 dB
Nominal Dispersion: 90° x 50°
Crossover Frequency: 1.6 kHz
Dimensions (H x W x D): 699 mm x 460 mm x 432 mm
(27.5 in x 18.1 in x 17 in)
Weight: 27.4 kg (60.5 lb)
High Frequency Driver: JBL 2412 1” exit compression driver mounted
on Progressive Transition™Waveguide
Low Frequency Driver: JBL M115-8A
Input Connectors: Neutrik® Speakon® NL-4 (x1); 1/4” TS phone jack (x1); parallel
JRX115 and JRX115i – 15”, two-way sound-reinforcement speaker system
Dual 15” speaker systems have become one of the most popular
configurations with DJs and musicians who are looking for more
low-frequency performance while maintaining the simplicity of a
single-box system. The JRX125 is actually a “quasi three-way”
design. This means that the upper woofer covers lows and mids.
The bottom woofer uses a lower crossover frequency and covers
only lows, acting as a built-in subwoofer. So you get the extra
low-end of a dual 15” rig while maintaining the superior
mid-frequency performance of a single driver system.
JRX125 – Dual 15” two-way sound reinforcement speaker Frequency Range1(-10 dB): 35 Hz - 16 kHz
Frequency Response1(±3 dB): 45 Hz - 12 kHz
Sensitivity (1w/1m): 100 dB SPL
Nominal Impedance: 4 Ω
Power Capacity2: 500 watts
Peak Power Capacity2: 2000 watts
Recommended Amplifier Power: 500 watts to 1000 watts into 4 Ω
Maximum SPL: 133 dB
Nominal Dispersion: 90° x 50°
Crossover Frequency: 2 kHz
Dimensions (H x W x D): 1092 mm x 464 mm x 426 mm
(43 in x 18.3 in x 16.8 in)
Weight: 42.6 kg (94 lb)
High Frequency Driver: JBL 2412 1” exit compression driver mounted
on Progressive Transition™Waveguide
Low Frequency Driver: JBL M115-8A x 2
Input Connectors: Neutrik® Speakon® NL-4 (x1); 1/4” TS phone jack (x1); parallel
Frequency Range1(-10 dB): 60 Hz - 16 kHz
Frequency Response1(±3 dB): 70 Hz - 12 kHz
Sensitivity (1w/1m): 99 dB SPL
Nominal Impedance: 8 Ω
Power Capacity2: 250 watts
Peak Power Capacity2: 1000 watts
Recommended Amplifier Power: 250 watts to 500 watts into 8 Ω
Maximum SPL: 129 dB
Nominal Dispersion: 90° x 50°
Crossover Frequency: 1.8 kHz
Dimensions (H x W x D): 584 mm x 399 mm x 325 mm
(23 in x 15.7 in x 12.8 in)
Weight: 19.5 kg (43 lb)
High Frequency Driver: JBL 2412 1” exit compression driver mounted
on Progressive Transition™Waveguide
Low Frequency Driver: JBL M112-8
Input Connectors: Neutrik® Speakon® NL-4 (x1); 1/4” TS phone jack (x1); parallel
Top concert acts hear themselves through JBL speakers -
so should you. The JRX112M is designed to be compact and
low-profile so it won‘t take up too much stage space or block
audience sight-lines.Nothing is more important for a stage monitor
than mid-range clarity. We paid special attention to optimizing
performance in the critical mid-range. With its high-sensitivity
(98 dB SPL), the JRX112M will crank out plenty of sound even with
a moderately powerful amplifier. The JRX112M also includes
JBL‘s Dual-Angle pole socket making it equally at home as a
front-of-house speaker.
An installation version (JRX112Mi) is also available. Three M10
eyebolts and threaded brackets replace the feet, pole socket, and
handles of the portable JRX112M.
JRX112M and JRX112Mi – 12”, two-way stage monitor speaker system
Frequency Range1(-10 dB): 38 Hz - 300 Hz
Frequency Response1(±3 dB): 55 Hz - 300 Hz
Sensitivity (1w/1m): 96 dB SPL
Nominal Impedance: 4 Ω
Power Capacity2: 350 watts
Peak Power Capacity2: 1400 watts
Recommended Amplifier Power: 300 watts to 600 watts into 4 Ω
Recommended Crossover Settings: 30 Hz HPF, 24 dB / octave; 80 – 100 Hz LPF, 24 dB / octave
Maximum SPL: 133 dB
Dimensions (H x W x D): 605 mm x 508 mm x 551 mm
(23.8 in x 20 in x 21.7 in)
Weight: 32.2 kg (71 lb)
Low Frequency Driver: JBL 2043-G
Input Connectors: Neutrik® Speakon® NL-4 (x 2); 1/4” TS phone jack (x1); parallel
The JRX118S is driven by a massive JBL 18" woofer with a cast
frame and 3" voice-coil. It's rated at 350 watts (continuous) and
1400 watts (peak) – and that's based on JBL Professional‘s
100 hour torture test. We've even created settings for the dbx
DriveRack® PA Loudspeaker Controller that will let you get every
last bit of performance from your JRX118S system.
For those who prefer the simplicity of a self-powered subwoofer,
there's the JRX118SP. JBL started with the same woofer used in the
non-powered JRX118S and added a specially designed amplifier
with 500 watts (peak) and 300 watts (continuous) power output.
The JRX118SP features…
• Dual inputs with balanced XLR connectors.
• A built-in stereo crossover network – great for systems with
EON or other powered satellite speakers.
• Peak limiter that protects the amplifier and speaker
from clipping.
JRX118S – 18”, compact subwoofer
JRX118SP – 18”, powered subwoofer
1. "Frequency Range" and "Frequency Response" are based on half-space response.
2. "Power Capacity" and "Peak Power Capacity" ratings are based on the average and peak power handling capacity of
product samples subjected to a 100 hour power test of the system design using IEC filtered random noise with a crest factor of 6 dB.
Frequency Range1 (-10 dB): 38 Hz - 300 Hz
Frequency Response1(±3 dB): 55 Hz - 300 Hz
Amplifier Power: Peak: 500 watts; Continuous: 300 watts with < 0.2% THD
Maximum SPL: 123 dB
Dimensions (H x W x D): 605 mm x 508 mm x 592 mm
(23.8 in x 20 in x 23.3 in)
Weight: 40.4 kg (89 lb)
Low Frequency Driver: JBL 2043-G
Input Connectors: XLR/M x 2 (line level, balanced); 1/4” TS phone jack x1 (speaker level)
Output Connectors: XLR/F x 2 (Selectable, Thru or High Pass)
CAT JRX100 03/07
The great sound you expect from JBL.
The price you don
’
t.
Progressive Transition™
Waveguide
Just one example of JBL’s innovation
is the PT™Waveguide design. For
decades, horn designers were faced
with trade-offs between well-
controlled coverage, low-distortion,
and good frequency response. JBL
developed proprietary algorithms
which give our PT Waveguides the
best performance in all three areas.
Hardware
JRX100 doesn’t scrimp on the
hardware either. All the JRX models
use tough, non-resonant all-steel
handles with big, beefy bars.
And the entire baffle (not just the
woofer) is protected by an 18
gauge steel grille.
SonicGuard™
Feedback, dropped microphones,
pushing the amps into clipping –
all these things can quickly destroy
even the best high-frequency drivers.
That’s why JBL JRX100 speakers
include SonicGuard™protection.
SonicGuard circuitry absorbs excess
energy without interrupting the
performance. No circuit breakers
to reset, no fuses to replace, and
no “poly-switches” to degrade
sound quality.
Enclosure Construction
Competitive systems typically use
particleboard construction and rely
entirely on glue to hold it together.
For JRX100, we selected a more
rugged and acoustically superior
3/4” MDF material for the
enclosures. And to make sure they
stay together, we constructed them
with advanced adhesives and
closely spaced mechanical
fasteners. Not only are the cabinets
rugged, but the denser enclosure
walls are more rigid, delivering
better low end as a result.
JBL Drivers
All woofers and compression drivers
used in JRX100 are manufactured
in Northridge, California by
JBL Professional.
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2
3
4
5
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2
3
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5
Elevating your speakers on a tripod stand or pole is a great idea.
But, if you raise the speaker too high, half the output hits the back wall
causing unwanted acoustic effects. Leave the speaker too low, and the
crowd down front gets blasted while those in the rear can’t hear. The
solution – a pole mount with two sockets so you have the option of
mounting your JRX115 or JRX112M with a 10° down angle. The result
– more uniform coverage of your audience and less energy wasted
hitting the walls. Of course you can still use the other socket to position
your speakers with no down angle.
While the drivers are the muscle of a speaker system, the crossover
network is the heart and soul. Just one look at a JRX100 network and a
competitive network tells the story. JRX100 networks are built using heavy
coils with massive cores and heavy gauge wire so they won’t saturate
when you drive them hard.
Crossover
Network Design
The JBL
100 Hour
Torture Test
Put on a set of industrial
hearing protectors, step
through three sound proof
doors and you’re in the JBL
Power Test room. All JBL
Professional speaker designs,
including JRX100, come here
for a brutal 100 hour torture
test. When we specify a
speaker as having 250 watts
continuous power capacity,
that means samples have
survived a 100 hour test with
IEC noise at 250 watts. And
that’s 250 watts average –
the signal we use actually has
6 dB (1000 watt) peaks. If
the systems don’t pass, we
change the design and start
the tests again. No one in
the industry uses a more
demanding standard.
Dual Angle Pole Socket
We
’
ve all heard shows where the sound was
plenty loud and the music was kicking but there
just wasn
’
t any energy. Could be that the problem was
inadequate bass. If your goal is to get the crowd out on the
dance floor, there
’
s no better way to do it than with plenty of
tight, punchy, powerful bass. And there
’
s no better way to get
bass than with a JBL subwoofer.
The JRX100 line gives you two ways to get the JBL subs you
need. If you prefer the simplicity and convenience of a powered
subwoofer, choose the JRX118SP. Or if you
’
d rather have the
flexibility of an externally powered rig, go with the JRX118S.
Either way you
’
re going to get the performance of a cast-frame,
18“ woofer built by JBL.
Powered or non-powered
– the choice is yours.
JRX115i and JRX112Mi
Installation Versions
The JRX115i and JRX112Mi are installation versions of portable
JRX100 models. Both are designed for suspension where
ground stacking or pole mounting is impractical or undesirable.
Handles, feet and pole-mount socket have been removed. Three
internal metal braces, threaded to receive M10 bolts have been
added. To complete the package, three forged M10 eyebolts
are provided. All other performance characteristics are identical
to their portable counterparts.
Bass
Basics
