JBL Prx615m Manual

							Thank you for choosing the JBL PRX600 series self-powered PA loudspeakers. The PRX 600 Series represent
an evolutionary step in the efficient use of amplifier power, rugged durability and enhanced versatility in a self
powered loudspeaker. The speakers were designed from the ground up to perform in the real wor\
ld of sound
reinforcement where challenging audio environments, high ambient noise l\
evels and loud volumes are the norm.
And we’ve built these speakers to last a lifetime using tour tested t\
echnology that’s reliable and trustworthy.
Knowing you can rely on your system to deliver everything you need gives\
 you the freedom to deliver your best.
That’s performance you can trust. With the PRX600 Series, as always, JBL delivers with precision and care.
Properly maintained, your PRX600 series speaker will provide you with ma\
ny years of flawless performance. To
ensure you are always receiving optimum performance we encourage you to \
review this user’s guide completely
before hooking up your new system. 
The PRX 600 Series is a platform technology that allows you to create th\
e system you need from an intelligent
range of models. While each model was designed to excel at a specific ap\
plication, the PRX Series integrate
seamlessly with one another offering a multitude of choices when tailoring a system to fit your specif\
ic needs.
Whether you need a single speaker on a stand for public address situatio\
ns, a full-range stereo set up with two
top cabinets and a sub-woofer for live performance or DJ applications, o\
r multiple cabinets for a scalable, highly
professional sound reinforcement situation, the PRX600 Series offers the solutions. In fact, you can even
suspend any of the top cabinets for use in a commercial installation or \
House of Worship. If versatility, scalability,
portability and affordability are what you’re looking for in a system, PRX 600s are the\
 intelligent choice.
Road Tough
All PRX600 cabinets are built from a combination of 25mm (on the top an\
d bottom for added rigidity) and 18mm,
strong, lightweight poplar plywood made structurally sound with tongue a\
nd groove joints. All PRX600 Series
cabinets are protected by JBL’s tour proven DuraFlex™ finish. We make our grilles from dent-resistant 16 gauge
steel and our handles are made from lightweight glass-filled nylon for a\
dded durability. All M10 suspension points
are constructed from 14 gauge steel and the M10 suspension points have b\
een tested with a yield-strength of
1000 lbs. each.
Introduction to the PRX600Series
PRX612MPRX615M
PRX618S
PRX618S-XLF PRX625
PRX635
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							Differential Drive Transducers
Extended frequency response, high power output and low distortion are ha\
llmarks of all JBL transducers. Our tour
tested, tour proven and patented Differential Drive® technology delivers all this performance in a dramatically lighter
package. With the neodymium magnet positioned inside the dual-coil/dual-\
gap voice coil, heavy steel pole pieces are
eliminated. And the heat sink is the chassis itself, further lowering system weight \
while ensuring consistent, reliable
performance.
Intelligence provided by Crown and dbx
The PRX 600 Series integrated digital power amplifiers were developed sp\
ecifically for JBL by Crown®, the most
trusted name in professional sound reinforcement amplification for over \
45 years. The Class D amplifiers are high
powered, low distortion and lightweight, ensuring faithful audio reprodu\
ction while conforming to our strict “maximum-
performance to weight ratio” design guidelines. Additionally, we’ve integrated the award winning dbx® Type IV™
limiter circuit on the inputs to guarantee signal integrity. We further optimize the system performance through the use 
of sophisticated Digital Signal Processing for EQ, crossover, amplifier control, and protection. This is the Harman family
working together to bring you the best in world-class audio technology. 
Versatile
Professionally discreet in appearance, the new PRX models are appealing \
to any musician, entertainer, A/V rental
company or commercial facility looking for superior audio performance in\
 a professional yet affordable package. We’ve
included suspension points for light-duty commercial installation and a \
two position pole mount for convenient stand
use. And as compared to their predecessors, the PRX500 Series, we’ve also \
reduced the size and weight making 
these speakers truly portable and ultimately manageable. 
Powered Speaker Systems
A Closed System Architecture…
There is much confusion these days in the world of powered speakers espe\
cially when it comes to defining
“performance”. What constitutes “exceptional performance”? I\
s it wattage ratings, driver dimensions, cabinet
dimensions, sound pressure levels, tone? It can get very confusing when \
you’re confronted with a barrage of
specifications from manufacturers all claiming to have the “best perf\
ormance”. 
A self powered speaker is really a “system” unto itself – it’s a “closed system”. Unlike a passive speaker, amplifier 
and signal processing chain where components can be interchanged or upgr\
aded, the powered speaker is a “closed
system” that operates as a single unit. Properly designed, all of the\
 components are chosen to work together,
complementing each other to create an environment where the whole is gre\
ater than the sum of the parts. The cabinet
volume needs to support the mechanical performance of the speaker which \
is impacted by the power amplifier’s
performance which, if there is Digital Signal Processing on the input, i\
s affected by the DSP programming. Some
manufacturers simply stick an amplifier on an existing speaker cabinet a\
nd call it a “powered speaker” (technically
correct) while more experienced companies, like JBL, spend hundreds of \
man hours optimizing the relationship
between the components in order to maximize amplifier and speaker efficiency, spectral balance, tone and
dependability.  Here at JBL we not only work hard on the system but on our proprietary components as\
 well. Products
like Differential Drive® speakers for example are patented designs born from years of dedicated r\
esearch and
development into acoustical and transducer science. No one else has acce\
ss to this technology and Differential 
Drive® speakers have been tested on worldwide concert tours for years. 
Harman Professional “Green Edge™” Mission
At Harman Professional we understand and respect that we have a duty to \
serve our customers and our employees 
by serving the planet. We accept that responsibility and strive to be energy efficient and environmentally minded in 
our everyday business. When we design, produce, and deliver our products\
 we look for opportunities to do so more
efficiently and sustainably. We’re committed to a healthier planet and healthier life for every liv\
ing thing. 
JBL is proud that PRX600s have been certified “Green Edge” compliant b\
y Harman Professional. We’ve reduced the
weight and size from the PRX500 Series and we’re using only renewable\
 materials in the packaging. We’ve not only
lowered our Carbon Footprint, but the CF of any one who purchases them.
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							SYSTEM SPECIFICATIONS  |  PRX612M
System Spec
System Type: Self powered 12", two-way, bass-reflex
Maximum SPL Output:134 dB (Full Range) peak 133 dB (Monitor) peak
Frequency Range (-10 dB): 
Full Range50 Hz -19.5 kHz
Monitor (vertical orientation)60 Hz -19.5 kHz
Monitor (monitor orientation)51 Hz -19.5 kHz
Frequency Response (±3 dB):
Full Range60 Hz -17.5 kHz
Monitor (vertical orientation)90 Hz -18 kHz
Monitor (monitor orientation)61 Hz -18.5 kHz
Input Connectors: Balanced XLR / 1/4 inch combo jack with XLR loop through
Input Impedance: 20K Ohms (balanced), 10K Ohms (unbalanced)
Signal indicators: Limit : Red LED indicates limiter active condition
Signal: Green LED indicates signal present
EQ:Presets for use in Main and Monitor position
Dynamic Control (Input):dbx Type IV™ limiter circuit 
Crossover Modes: DSP controlled. LF: 48 dB/Oct. filter slope High & Low Pass 
HF: 36 dB/Oct High Pass
Crossover Frequency: 2 kHz
Amplifier
Design:Crown® Class D
Power Rating: 1000 W (2 x 500)
Speaker
LF Driver:1 x JBL 262F-1 380 mm (12 in) Differential Drive® dual voice-coil
and magnetic gap, neodymium woofer
HF Driver: 1 x JBL 2408H 37.5 mm (1.5 in) annular polymer diaphragm,
neodymium compression driver
Coverage Pattern: 90º x 50º nominal
Directivity Index (DI): 9.8 dB
Directivity Factor (Q): 9.6
Enclosure: Asymmetrical, 18 mm, plywood
Suspension/ Mounting: Dual 36 mm pole socket, 8 x M10 Suspension Points and 1 x M10
Pull-Back Point
Transport:Integrated handle with backing cup
Finish:Obsidian DuraFlex™ finish
Grille: Powder coated, Obsidian, 16 gauge perforated steel with
acoustically transparent black cloth backing.
Input Connectors: Balanced XLR / 1/4 inch combo jack with XLR loop through
Dimensions (H x W x D): 592 mm x 353 mm x 340 mm (23.3 in x 13.9 in x 13.4 in)
Net Weight:15.6 kg (34.5 lb)
Gross Weight:19.2 kg (42.5 lb)13
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							System Spec
System Type: Self powered 15", two-way, bass-reflex
Maximum SPL Output:135 dB (Full Range) peak, 134 dB (Monitor) peak
Frequency Range (-10 dB): 
Full Range45 Hz - 19 kHz
Monitor (vertical orientation)55 Hz - 19 kHz
Monitor (monitor orientation)48 Hz - 20 kHz
Frequency Response (±3 dB):
Full Range54 Hz - 18 kHz
Monitor (vertical orientation)75 Hz - 18.5 kHz
Monitor (monitor orientation)60 Hz - 18kHz
Input Connectors: Balanced XLR / 1/4 inch combo jack with XLR loop through
Input Impedance: 20K Ohms (balanced), 10K Ohms (unbalanced)
Signal indicators: Limit : Red LED indicates limiter active condition
Signal: Green LED indicates signal present
EQ:Presets for use in Main and Monitor position
Dynamic Control (Input):dbx Type IV™ limiter circuit 
Crossover Modes: DSP controlled. LF: 48 dB/Oct. filter slope High & Low Pass 
HF: 36dB/Oct High Pass
Crossover Frequency: 1.8 kHz
AmplifierDesign:Crown® Class D
Power Rating: 1000 W (2 x 500)
Speaker
LF Driver:1 x JBL 265F-1 380 mm (15 in) Differential Drive® dual voice-coil
and magnetic gap, neodymium woofer
HF Driver: 1 x JBL 2408H 37.5 mm (1.5 in) annular polymer
diaphragm,neodymium compression driver
Coverage Pattern: 90º x 50º nominal
Directivity Index (DI): 10.0 dB
Directivity Factor (Q): 10.0
Enclosure: Asymmetrical, 18 mm, plywood
Suspension/ Mounting: Dual 36 mm pole socket, 8 x M10 Suspension Points and 1 x M10
Pull-Back Point
Transport:Integrated handle with backing cup
Finish:Obsidian DuraFlex™ finish
Grille: Powder coated, Obsidian, 16 gauge perforated steel with
acoustically transparent black cloth backing.
Input Connectors: Balanced XLR / 1/4 inch combo jack with XLR loop through
Dimensions (H x W x D): 660 mm x 429 mm x 414 mm (26 in x 16.9 in x 16.3 in)
Net Weight:19.7 kg (43.5 lb)
Gross Weight:24.2 kg (53.5 lb)
PRX615M
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							System Spec
System Type: Self powered dual 15", two-way, bass-reflex,
Maximum SPL Output:139 dB peak
Frequency Range (-10 dB): 
Flat40 Hz -19.5 kHz
Boost39 Hz -19.5 kHz
Frequency Response (±3 dB):
Flat55 Hz -17.5 kHz
Boost50 Hz -18 kHz
Input Connectors: Balanced XLR / 1/4 inch combo jack with XLR loop through,
Input Impedance: 20K Ohms (balanced), 10K Ohms (unbalanced)
Signal indicators: Limit : Red LED indicates limiter active condition
Signal: Green LED indicates signal present
EQ:Presets for use in Main and Boost position
Dynamic Control (Input):dbx Type IV™ limiter circuit
Crossover Modes: DSP controlled. LF: 48 dB/Oct. filter slope High & Low Pass 
HF: 36 dB/Oct High Pass
Crossover Frequency: 1.8 kHz
Amplifier
Design:Crown® Class D
Power Rating: 1500 W (3 x 500)
Speaker
LF Driver:2 x JBL 265F-1 380 mm (15 in) Differential Drive® dual voice-coil
and magnetic gap, neodymium woofer
HF Driver: 1 x JBL 2408H-1 37.5 mm (1.5 in) annular polymer diaphragm,
neodymium compression driver
Coverage Pattern: 90º x 50º nominal
Directivity Index (DI): 10.2 dB
Directivity Factor (Q): 10.1
Enclosure: Trapezoidal, 18 mm, plywood
Suspension/ Mounting: 8 x M10 Suspension Points and 1 x M10 Pull-Back Point
Transport:Integrated handle with backing cup
Finish:Obsidian DuraFlex™ finish
Grille: Powder coated, Obsidian, 16 gauge perforated steel with
acoustically transparent black cloth backing.
Input Connectors: Balanced XLR / 1/4 inch combo jack with XLR loop through
Dimensions (H x W x D): 1.053 mm x430 mm x 413 mm (41.47 in x 16.9 in x 16.27 in)
Net Weight:27.2 kg (60 lb)
Gross Weight:29.2 kg (64.5 lb)
PRX625
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							System Spec
System Type: Self powered 15", three-way, bass-reflex
Maximum SPL Output:135 db peak
Frequency Range (-10 dB): 
Flat41 Hz -19 kHz
Boost40 Hz -19 kHz
Frequency Response (±3 dB):
Flat53 Hz -18 kHz
Boost50 Hz -18 kHz
Input Connectors: Balanced XLR / 1/4 inch combo jack with XLR loop through,
Input Impedance: 20K Ohms (balanced), 10K Ohms (unbalanced)
Signal indicators: Limit : Red LED indicates limiter active condition
Signal: Green LED indicates signal present
EQ:Presets for use in Main and Boost position
Dynamic Control (Input):dbx Type IV™ limiter circuit
Crossover Modes: DSP controlled. LF: 48 dB/Oct. filter slope High & Low Pass 
HF: 36 dB/Oct. High Pass
Crossover Frequency: 460 Hz, 2.75 kHz
Amplifier
Design:Crown® Class D
Power Rating: 1500 W (3 x 500)
Speaker
LF Driver:1 x JBL 265F-1, 380 mm (15 in) Differential Drive® dual voice-coil
and magnetic gap, neodymium woofer
MF Driver:1 x JBL 195H, 165 mm (6.5 in) horn-loaded midrange transducer
HF Driver: 1 x JBL 2414H 25.4 mm (1 in) annular polymer diaphragm,
neodymium compression driver
Coverage Pattern: 90º x 50º nominal
Directivity Index (DI): 9.6 dB
Directivity Factor (Q): 9.1
Enclosure: Trapezoidal, 18 mm, plywood
Suspension/ Mounting: 36 mm pole socket, 8 x M10 Suspension Points and 1 x M10 Pull-
Back Point
Transport:Integrated handle with backing cup
Finish:Obsidian DuraFlex™ finish
Grille: Powder coated, Obsidian, 16 gauge perforated steel with
acoustically transparent black cloth backing.
Input Connectors: Balanced XLR / 1/4 inch combo jack with XLR loop through
Dimensions (H x W x D): 921 mm x 429 mm x  413 mm (36.29 in x 16.9 in x 16.27 in)
Net Weight:27.2 kg (60 lb)
Gross Weight:29.2 kg (64.5 lb)
PRX635
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							System Spec
System Type: Self powered 18", bass-reflex
Maximum SPL Output:129 dB  peak
Frequency Range (-10 dB): 41 Hz - 130 Hz
Frequency Response (±3 dB): 50 Hz - 100 Hz
Input Connectors: Balanced XLR input with XLR loop through (stereo). 1/4 inch
speaker level input (Mono).
Input Impedance: 20K Ohms (balanced) 
Signal indicators: Overload: Red LED indicates input overload condition
Signal: Green LED indicates signal present
Polarity: normal or reverse polarity
Crossover Modes: analog 24 dB/Oct. filter slope
Crossover Frequency: 120 Hz
AmplifierDesign:Crown® Class D
System Power Rating: 600 W 
Speaker
LF Driver: 268G 460 mm (18 in) Differential Drive® dual voice-coil and
magnetic gap, neodymium woofer
Enclosure: Rectangular, 18 mm, plywood
Suspension / Mounting: 36 mm pole socket on top
Transport: 2 x injection molded handles with backing cup
Finish: Obsidian DuraFlex™ finish
Grille: Powder coated, Obsidian, 16 gauge perforated steel with
acoustically transparent black cloth backing.
Dimensions (H x W x D):685.8 mm x 530.9 mm x 614.7 mm (27.0 in x 20.9 in x 24.2 in)
Net Weight: 32 kg (70.5 lb)
Gross Weight: 37.2 kg (82 lb)
PRX618S
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							System Spec
System Type: Self powered 18", bass-reflex
Maximum SPL Output:133 dB peak
Frequency Range (-10 dB): 30 Hz - 105 Hz
Frequency Response (±3 dB): 39 Hz - 93 Hz
Input Connectors: Balanced XLR 1/4 inch combo jack with XLR loop through.
(stereo)
Input Impedance: 20K Ohms (balanced), 10K Ohms (unbalanced)
Signal indicators: Limit : Red LED indicates limiter active condition
Signal: Green LED indicates signal present
Polarity: normal or reverse polarity
Crossover Modes: DSP controlled 48 dB/Oct. filter slope
Crossover Frequency: 90 Hz
Dynamic Control (Input):dbx Type IV™ limiter circuit
Amplifier
Design:Crown® Class D
Power Rating: 1000 W (2 x 500)
Speaker
LF Driver: 460 mm (18 in) Differential Drive® dual voice-coil and magnetic
gap, neodymium woofer
Enclosure: Rectangular, 18 mm, plywood
Suspension / Mounting: M20 threaded pole socket on top
Transport: 2 x injection molded handles with backing cup
Finish: Obsidian DuraFlex™ finish
Grille: Powder coated, Obsidian, 16 gauge perforated steel with
acoustically transparent black cloth backing.
Dimensions (H x W x D):685.8 mm x 530.9 mm x 716.3 mm (27.0 in x 20.9 in x 28.2 in)
Net Weight: 37 kg (81.5 lb)
Gross Weight: 42.3 kg (93 lb)
PRX618S-XLF 
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							SYSTEM SET UP - FULL RANGE MODELS
PRX600 Amplifier Input Configuration for 
PRX612M, PRX615M, PRX625 and PRX635 Full-Range Models:
1234 5
67
8
9
10
Features
1  -  EQ BOOST / FLAT :When set in the “FLAT” position, frequency response is linear and unaltered. When 
“Boost” is selected, internal equalization is applied to enhance l\
ow frequency and high 
frequency response. “FLAT” will provide greater accuracy of reproduced music, higher
speech intelligibility and maximum overall level. “BOOST” is parti\
cularly useful at lower
levels to enhance the low and high frequencies of pre-recorded music. The feature 
provides flexibility without the need to use an external equalizer. The following graph 
shows the effect of the “BOOST” setting. 
MAIN/MONITOR:Switching between “MAIN” and “MONITOR” optimizes the system for use as either a main  full-range system, or a stage monitor. (PRX612M and PRX615M only).
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							2  - INPUT  MIC / LINE:Allows the selection of different input sensitivities to permit the connection of many 
different sources, with or without the use of a mixer or external microphon\
e preamplifier.
See “Setting Input Sensitivity” on page 24.
3  - LEVEL:Sound level adjustment. With the input in the “MIC” position the l\
evel can be adjusted over a large 
range. In the “LINE” position most typical applications will requi\
re that the level control is set at 
12 o’clock. (More details are outlined in “Setting the Input Sens\
itivity” and “Setting the Gain”).
6  - POWER SWITCH:Turns the power on. The blue indicator LED in the Logo badge on the front of the speaker 
serves also as a power “on” indicator. 
7  - LINE SELECT:Allows user selection of different country voltage ratings. 
8  -  AC LINE INPUT:Standard IEC AC line input connector.
Real Panel Indicators 
4  -  SIGNAL:Signal indicator. The green LED illuminates when a signal is present.
5  - LIMITER:The red LED illuminates when the system overload protection is active. I\
f the input signal is too  strong or the “LEVEL” control set too high, the red LED will illum\
inate constantly. Illumination of
the “LIMITER” LED can be avoided by reducing the input level or tu\
rning down the “LEVEL” 
control to the point at which the red LED occasionally flickers. (PRX61\
2M, LIMITER: Red LED
indicates limiter in operation)
Connectors
9  -XLR:Female balanced XLR and 1/4 inch phone jack combo balanced input connect\
or. 
10 - XLR :Male balanced XLR output connector. This connector provides a full-range signal which can be daisy
chained to another speaker.
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