JBL CSA-2120 User manual

CSA-2120
CST-2120
Public Address System
Operation Manual
CSA-2120 Amplifier & CST-2120 Transformer
CS Commercial Solution Series

2
This manual does not include all of the details of design, production, or variation of the equipment. Nor does it
cover every possible situation which may arise during installation, operation or maintenance.
The information provided in this manual was deemed accurate as of the publication date. However, updates to
this information may have occured.
Trademark Notice: JBL is registered trademark of JBL International. Other trademarks are the property of their
respective owners.
© 2012 JBL Commercial, 8760 South Sandy Parkway, Sandy, UT. All Rights Reserved.
Contents
Important Safety Instructions .......................................................................... 2
JBL DECLARATION OF CONFORMITY .......................................................... 4
1.0 Welcome .................................................................................................... 5
1.1 Features ................................................................................................ 5
1.2 How to Use this Manual ......................................................................... 5
2.0 Setup ......................................................................................................... 6
2.1 Unpacking Your Amplifier . .................................................................... 6
2.2 Installing Your Amplifier ......................................................................... 6
2.3 Ensuring Proper Cooling ........................................................................ 9
2.4 Choosing Input Wire and Connectors ................................................... 9
2.5 Choosing Output Wire and Connectors ............................................... 10
2.6 Wiring Your Audio System .................................................................... 11
2.7 Connecting to AC Mains ......................................................................... 12
2.8 Protecting Your Speakers ..................................................................... 12
2.9 Startup Procedure ................................................................................ 12
3.0 Operation ................................................................................................ 13
3.1 Precautions .......................................................................................... 13
3.2 Front Panel Controls and Indicators .................................................... 14
3.3 Rear Panel Controls and Connectors .................................................... 14
Appendix A: Optional Item - Transformer module........................................ 15
Appendix B: Specifications ............................................................................ 17
Appendix C: AC Power Draw and Thermal Dissipation.................................. 17
Appendix D: Contact Information ................................................................... 18

3
IMPORTANT SAFETY INFORMATION
WARNING FOR YOUR PROTECTION
READ THE FOLLOWING:
KEEP THESE INSTRUCTIONS
HEED ALL WARNINGS
FOLLOW ALL INSTRUCTIONS
THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR
SPLASHING LIQUID AND NO OBJECT FILLED WITH LIQUID, SUCH
AS VASES, SHALL BE PLACED ON THE APPARATUS
CLEAN ONLY WITH A DRY CLOTH.
DO NOT BLOCK ANY OF THE VENTILATION OPENINGS. INSTALL IN
ACCORDANCE WITH THE MANUFACTURER’S INSTRUCTIONS.
DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS
RADIATORS, HEAT REGISTERS, STOVES, OR OTHER APPARATUS
(INCLUDING AMPLIFIERS) THAT PRODUCE HEAT.
ONLY USE ATTACHMENTS/ACCESSORIES SPECIFIED BY THE
MANUFACTURER.
UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR
WHEN UNUSED FOR LONG PERIODS OF TIME.
Do not defeat the safety purpose of the polarized or grounding-type
plug. A polarized plug has two blades with one wider than the
other. A grounding type plug has two blades and a third grounding
prong. The wide blade or third prong are provided for your safety. If
the provided plug does not fit your outlet, consult an electrician for
replacement of the obsolete outlet.
Protect the power cord from being walked on or pinched particularly
at plugs, convenience receptacles, and the point where they exit from
the apparatus.
Use only with the cart stand, tripod bracket, or table specified by the
manufacture, or sold with the apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid injury
from tip-over. Refer all servicing to to qualified service personnel.
Servicing is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate normally, or has
been dropped.
POWER ON/OFF SWITCH: For products provided with a power
switch, the power switch DOES NOT break the connection from the
mains.
MAINS DISCONNECT: The plug shall remain readily operable. For
rack-mount or installation where plug is not accessible, an all-pole
mains switch with a contact separation of at least 3 mm in each pole
shall be incorporated into the electrical installation of the rack or
building.
FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE
RECEPTACLE: Replace fuse with same type and rating only.
MULTIPLE-INPUT VOLTAGE: This equipment may require the use
of a different line cord, attachment plug, or both, depending on the
available power source at installation. Connect this equipment only
to the power source indicated on the equipment rear panel. To reduce
the risk of fire or electric shock, refer servicing to qualified service
personnel or equivalent.
If connected to 240V supply, a suitable CSA/UL certified power cord shall
be used for this supply.
SAFETY INSTRUCTIONS
NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A
POWER CORD.
WARNING: THIS APPLIANCE SHALL BE CONNECTED TO A MAINS
SOCKET OUTLET WITH A PROTECTIVE EARTHING CONNECTION.
The cores in the mains lead are coloured in accordance with the following code:
GREEN and YELLOW - Earth BLUE - Neutral BROWN - Live
As colours of the cores in the mains lead of this appliance may not cor-
respond with the coloured markings identifying the terminals in your plug,
proceed as follows:
•The core which is coloured green and yellow must be connected to the
terminal in the plug marked with the letter E, or with the earth symbol, or
coloured green, or green and yellow.
•The core which is coloured blue must be connected to the terminal
marked N or coloured black.
•The core which is coloured brown must be connected to the terminal
marked L or coloured red.
This equipment may require the use of a different line cord, attachment
plug, or both, depending on the available power source at installation. If
the attachment plug needs to be changed, refer servicing to qualified ser-
vice personnel who should refer to the table below. The green/yellow wire
shall be connected directly to the units chassis.
CONDUCTOR WIRE COLOUR
Normal Alt
LLIVE BROWN BLACK
NNEUTRAL BLUE WHITE
EEARTH GND GREEN/YEL GREEN
WARNING: If the ground is defeated, certain fault conditions in the unit or
in the system to which it is connected can result in full line voltage between
chassis and earth ground. Severe injury or death can then result if the chassis
and earth ground are touched simultaneously.
The symbols shown above are internationally accepted symbols
that warn of potential hazards with electrical products. The light-
ning flash with arrowpoint in an equilateral triangle means that
there are dangerous voltages present within the unit. The exclama-
tion point in an equilateral triangle indicates that it is necessary for
the user to refer to the owner’s manual.
These symbols warn that there are no user serviceable parts inside
the unit. Do not open the unit. Do not attempt to service the unit
yourself. Refer all servicing to qualified personnel. Opening the
chassis for any reason will void the manufacturer’s warranty.
Do not get the unit wet. If liquid is spilled on the unit, shut it off
immediately and take it to a dealer for service. Disconnect the unit
during storms to prevent damage.

4
IMPORTANT SAFETY INFORMATION
ELECTROMAGNETIC
COMPATIBILITY
This device complies with part 15 of the FCC Rules and the
Product specifications noted on the Declaration of Conformity.
Operation is subject to the following two conditions:
•this device may not cause harmful
interference, and
•this device must accept any interference received, including
interference that may cause undesired operation.
Operation of this unit within significant
electromagnetic fields should be avoided.
•use only shielded interconnecting cables.
U.K. MAINS PLUG WARNING
A molded mains plug that has been cut off from the cord is
unsafe. Discard the mains plug at a suitable disposal facility.
NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT
A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER
SOCKET. Do not use the mains plug without the fuse cover in
place. Replacement fuse covers can be obtained from your local
retailer. Replacement fuses are 13 amps and MUST be ASTA
approved to BS1362.
If you want to dispose this product, do not mix it with gen-
eral household waste. There is a separate collection system
for used electronic products in accordance with legislation
that requires proper treatment, recovery and recycling.
Private household in the 25 member states of the EU, in Switzerland
and Norway may return their used electronic products free of charge to
designated collection facilities or to a retailer (if you purchase a similar
new one).
For Countries not mentioned above, please contact your local authorities
for a correct method of disposal.
By doing so you will ensure that your disposed product undergoes the
necessary treatment, recovery and recycling and thus prevent potential
negative effects on the environment and human health.
MAGNETIC FIELD
CAUTION! Do not locate sensitive high-gain equipment such as preamplifiers
or tape decks directly above or below the unit. Because this amplifier has a
high power density, it has a strong magnetic field which can induce hum into
unshielded devices that are located nearby. The field is strongest just above
and below the unit.
If an equipment rack is used, we recommend locating the amplifier(s) in
the bottom of the rack and the preamplifier or other sensitive equipment
at the top.

5
EC - DECLARATION OF CONFORMITY
Brand: JBL
Equipment Type: Amplifier and Transformer
Model names: CSA-2120, CST-2120
We, Harman International, declare under our sole responsibility that the product, to which this declaration relates, is in
conformity with the following standards.
Due to line current harmonics, we recommend that you contact your supply authority before connection.
We certify that the product identified above conforms to the requirements of the EMC Council Directive 89/336/EEC as amended
by 92/31/EEC, and the Low Voltage Directive 73/23/EES as amended by 93/68/EEC.
Report No. Description
EN 55103-1:1997 EMC Compatibility – Product Family Standard for Audio, Video, Audio-Visual and
Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions
EN 55103-1:1997 Magnetic Field Emissions – Annex A @ 10cm and 20cm
EN 61000-3-2:2005
& AMD1:2008
Limits for Harmonic Current Emissions (equipment input current less than or equal to 16A
EN 61000-3-3:2008 Limitation of Voltage Fluctuations and Flicker in Low-Voltage Supply systems Rated Current
less than or equal to 16A
EN 55022:2010 Limits and Methods of Measurement of Radio Disturbance Characteristics of ITE: Radiated
& Conducted, Class B Limits
EN 55103-2:1997 EMC Compatibility – Product Family Standard for Audio, Video, Audio-Visual and
Entertainment Lighting Control Apparatus for Professional Use, Part 2: Immunity
EN 61000-4-2:2001 Electrostatic Discharge Immunity (Environment E2-Criteria B, 4k V Contact, 8k V Air
Discharge)
EN 61000-4-3:2006 Radiated, Radio-Frequency, EMC Immunity (Environment E2, Criteria A)
EN 61000-4-4:2007 Electrical Fast Transient/Burst Immunity (Criteria B)
EN 61000-4-5:2006 Surge Immunity (Criteria B)
EN 61000-4-6:2006 Immunity to Conducted Disturbances Induced by Radio-Frequency Fields (Criteria A)
EN 61000-4-11:2001 Voltage Dips, Short Interruptions and Voltage Variation
Safety Standard:
IEC 60065:2001 – 7th Ed.
& AMD1:2005
Safety Requirements – Audio, Video, and Similar Electronic Apparatus
European Representative’s
Name and Address:
David Budge
10 Harvest Close
Yateley, GU46 6YS
United Kingdom
Responsible for the technical
documentation is:
Wilson Zhou
[email protected]

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1.0 Welcome
The JBL®CSA-2120 power amplifier is a professional tool designed and built for
installed sound applications. The amplifier is a two-channel model providing simple
analog amplification, with a switch-mode universal power supply.
The amplifier includes a rack mounting kit. A transformer module can be purchased
for use in high impedance distributed sound systems. With the rack mounting kit,
you can install the amplifier to a cabinet or wall. If your loudspeaker system requires
higher impedance, the transformer module can be connected between the amplifier
and loudspeaker systems to obtain the impedance matching.
1.1 Features
• High power output, compact size, light weight
• Accurate, uncoloured sound with very low distortion for the best in music and voice
• Over heat auto protection
• Low voltage auto protection
• Auto-Standby mode
• Detachable Euroblock input and output
• Switch-mode universal power supply
1.2 How to Use This Manual
This manual provides you with necessary information to safely and correctly setup
and operate your amplifier. It does not cover every aspect of installation, setup or
operation that might occur under every condition.
We strongly recommend you read all instructions, warnings and cautions contained
in this manual.

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2.0 Setup
2.1 Unpacking Your Amplifier
Please unpack and inspect your amplifier for any damage that may have occurred
during transit. If damage is found, notify the transportation company immediately.
Only you can initiate a claim for shipping damage. We will be happy to help
as needed. Save the shipping carton as evidence of damage for the shipper’s
inspection.
We also recommend that you save all packing materials so you will have them if you
ever need to transport the unit. Never ship the unit without the factory pack.
WARNING: Before you start to set up your amplifier, make sure you read and
observe the Important Safety Instructions found at the beginning of this manual.
2.2 Installing Your Amplifier
CAUTION: Before you begin, make sure your amplifier is disconnected from the
power source and all level controls turned completely down (counterclockwise).
To install the amplifier, you can use one of the following approaches:
• Rack mount the amplifier with the rack mounting kit, see Figure 2.2.3 and
Figure 2.2.4.
• Install the amplifer to the wall with the mounting kit, see Figure 2.2.5.
• Stack amps without using a cabinet. For amplifier dimensions, see Figure
2.2.1.
NOTE: When transporting, amplifiers should be supported at front.

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Solution A: Rack Mounting an Amplifier and CST-2120 Transformer Module
To install an amplifier and a CST-2120 transformer module in your cabinet system,
refer to Figure 2.2.3 and follow the steps below:
1. Align two modules side by side, with the front panel towards the same direction.
2. Connect them with the flat bracket.
3. Attach an angle bracket to each side of the amplifier assembly with screws.
4. Install the amplifier assembly into the cabinet. For details of installation in the
chassis of the cabinet, refer to the user guide of your cabinet.
Figure 2.2.1 Dimensions
Figure 2.2.2 Mounting Kit
long angle bracket
flat bracket
angle bracket
Unit: mm [inches]
Figure 2.2.3 Rack mounting an amplifier and CST-2120 Transformer Module

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Solution B: Rack Mounting Single Amplifier
To install single amplifier in your cabinet system, refer to Figure 2.2.4 and follow the
steps below:
1. Attach the long angle bracket to one side of the amplifier that you need to
reserve as dummy module with screws.
2. Attach an angle bracket to the side of the long angle bracket.
3. Attach an angle bracket to another side of the amplifier with screws.
4. Install the amplifier assembly into the cabinet. For details of installation in the
chassis of the cabinet, refer to the user guide of your cabinet.
Solution C: Wall Mounting
To install the amplifier to wall, refer to Figure 2.2.5 and follow the steps below:
1. Attach two angle brackets to both sides of the amplifier with screws.
2. Install the amplifier assembly to a flat and secure position on the wall (for drywall
it is recommended to use #12 x 1-1/2 in. or M6 x 40mm screws into a #12-14 x
1 – ½ in. anchor.) A minimum clearance of 4” should be provided on all sides of
the assembly to allow for heat dissipation.
Figure 2.2.4 Rack Mounting Single Amplifier
Figure 2.2.5 Wall Mounting

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2.3 Ensuring Proper Cooling
When using an equipment rack, mount units directly on top of each other. DO NOT
block side air vents. The back of the rack should be open.
2.4 Choosing Input Wire and Connectors
We recommend using pre-built or professionally wired balanced line (two-conductor
plus shield) 22-24 gauge cables to connect the amplifier balanced input by using
shipped two 3-pin Euroblock connectors, see Figure 2.4. Unbalanced lines may be
used, but may result in hum or RF noise very long cable runs.
You can also use RCA connectors to connect audio devices, for example, CD/DVD
player. However, do not use both Euroblock and RCA audio input connectors on a
single channel at the same time.
NOTE: Custom wiring should only be performed by qualified personnel.
Figure 2.4 Input Wiring
Note: Do not use both Euroblock and RCA audio input connectors on a single
channel at the same time.

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2.5 Output Wiring
To drive distributed speaker systems designed to operate at 70V or 100V, connect
the amplifier to a CST-2120 transformer module with the jumper cable that shipped
with the CST-2120 transformer module, see Figure 2.5.1.
JBL recommends using pre-built or professionally wired, high-quality, two-conductor,
heavy gauge speaker wire. Speakers wires should be twisted cable, if possible. To
prevent the possibility of short-circuits, the wires should be stripped back no greater
than 6 mm (1/4 inch), see Figure 2.5.2.
Suggested below are guidelines to select the appropriate size of wire based on the
distance from amplifier to speaker. Check with local code as this may vary.
Distance Wire Size
Up to 25 ft. (7.6m) 16AWG
26-40 ft. (7.9-12.2m) 14AWG
Figure 2.5.1 Connecting To a CST-2120 Transformer Module
NOTE: If driving a 70V or 100V distributed speaker system, use the optional CST-
2120 transformer module (see Appendix A).
TO
Speaker
TO
Speaker
Figure 2.5.2 Connecting to Speakers

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2.6 Wiring Your Audio System
Typical input and output wirings are shown in Figure 2.6.
INPUTS: Connect input wiring for both channels using either the RCA or the
Euroblock input for each channel.
OUTPUTS: Maintain proper polarity (+/–) on output connectors.
Connect Channel 1 loudspeaker’s positive (+) lead to Channel 1 positive (+) terminal
of amp; repeat for negative (–). Repeat Channel 2 wiring as for Channel 1.
The minimum impedance one of the amplifier channels can drive is 4 Ohms.
Therefore, you can connect up to four 16 Ohms speakers, or two 8 Ohms speakers,
or one 4 Ohms speaker to each amp channel.
Figure 2.6 Wiring Audio System
Professional
audio system
Personal audio
system

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2.7 Connecting to AC Mains
Connect your amplifier to the AC mains power source (power outlet) with the
supplied AC power cord. First, connect the IEC end of the cord set to the IEC
connector on the amplifier; then, plug the other end of the cord set to the AC mains.
WARNING: The third prong of this connector (ground) is an important safety feature.
Do not attempt to disable this ground connection by using an adapter or other
methods.
Amplifiers don’t create energy. The AC mains voltage and current must be sufficient
to deliver the power you expect. You must operate your amplifier from an AC mains
power source with not more than a 10% variation above or below the specified line
voltage and within the specified frequency range indicated on the back panel of the
amplifier. If you are unsure of the output voltage of your AC mains, please consult
your electrician.
2.8 Protecting Your Speakers
It’s wise to avoid clipping the amplifier signal. Not only does clipping sound bad, it
can damage high-frequency drivers. The built-in clip limiter prevents clipping.
Also, avoid sending strong subsonic signals to the amplifier. High-level, low-
frequency signals from breath pops or dropped microphones can blow out drivers.
You can switch on the highpass filters, and this avoids to send subsonic signals
under 70 Hz to the amplifier. Use of the high-pass filter is necessary when using the
CST2120 transformer module to drive a 70V or 100V distributed loudspeaker system
in order to prevent distortion due to transformer saturation.
2.9 Startup Procedure
Use the following procedure when first turning on your amplifier:
1. Turn down the level of your audio source.
2. Turn down the level controls of the amplifier.
3. Power up the amplifier. The Power indicator should light.
4. Turn up the level of your audio source to an optimum level.
5. Turn up the Level controls on the amplifier until the desired loudness or power
level is achieved.
If you ever need to make any wiring or installation changes, don’t forget to
disconnect the power cord.

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3.0 Operation
3.1 Precautions
Your amplifier is protected from internal and external faults, but you should still take
the following precautions for optimum performance and safety:
1. Before use, your amplifier first must be configured for proper operation,
including input and output wiring hookup. Improper wiring can result in serious
operating difficulties.
For information on wiring and configuration, please consult the Setup section of
this manual.
2. Use care when making connections, selecting signal sources and controlling the
output level.
3. Do not short the ground lead of an output cable to the input signal ground. This
may form a ground loop and cause oscillations.
4. WARNING: Never connect the output to a power supply, battery or power main.
Electrical shock may result.
5. Tampering with the circuitry, or making unauthorized circuit changes may be
hazardous and invalidates all agency listings.
6. Do not operate the amplifier with the red Clip LEDs constantly flashing.
7. Do not overdrive the mixer, which will cause clipped signal to be sent to
the amplifier. Such signals will be reproduced with extreme accuracy, and
loudspeaker damage may result.
8. Do not operate the amplifier with less than the rated load impedance. Due to
the amplifier’s output protection, such a configuration may result in premature
clipping and speaker damage.
9. Use the amplifier in a well-ventilated environment and do not use it in ambient
temperature conditions in excess of 40ºC. Failure to do so will result in the auto
disconnection from power supply, and the overheat auto protection function will
be activated. The power indicator will be turned off and there will not be any
audio signal coming out of the amplifier. In this case, turn down the volume to
the minimum, and the amplifier will resume working. When the amplifier returns
to normal temperature then you may turn the volume up to the required level.
10. If the line voltage to the amplifier is too low, the low voltage protection function
will be activated. The power indicator will be turned off.
CAUTION: JBL is not liable for damage that results from overdriving other
system components.

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3.2 Front Panel Controls and Indicators
A. Level: Rotary level control, one per channel.
B. Meter Group (one per channel):
• Clip Indicator: Red LED turns at the threshold of audible distortion.
• Signal Indicator: Green LED flashes when a very low-level signal (Threshold
-40dB) is present at input. May be used for troubleshooting cable runs.
C. Power Indicator: Indicates that AC power is being applied to the unit.
3.3 Rear Panel Controls and Connectors
D. AC Line Connector
E. Output Connectors: 4-pin Euroblock connectors for dual loudspeakers.
F. Amplifier Parameter Switches: Slide DOWN to turn on these functions. Slide UP
to turn them off. The parameter switches are numbered as below:
1. CH1 70Hz highpass filter
2. CH2 70Hz highpass filter
3. CH1 peak limiter
4. CH2 peak limiter
5. Auto-Standby
G. RCA Connectors
H. Euroblock Connectors: Two 3-pin Euroblock connectors each accept a
balanced or unbalanced line-level input signal.
AC
B
D E F G
H
Figure 3.3 Rear View
Figure 3.2 Front View

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Appendix A: Optional Item - Transformer Module
The rack-mountable JBL Commercial®CST-2120 transformer module provides
impedance and voltage matching from the CSA-2120 amplifier to drive 70V and
100V distributed speakers systems.
This unit allows amplifiers without direct 70V or 100V output capability to drive
distributed speaker systems designed to operate at those voltages.
Features
• Provides two channels of impedance matching for “Constant-Voltage” operation
• Provides 70V and 100V output when used with CSA-2120 amplifiers
• Allows the CSA-2120 to be easily integrated into distributed systems
• Detachable Euroblock input and output connectors are included.
CST-2120 Overview
Max Input Power:120 W / CH. 31Vrms (amp rated at 120W @ 8 ohms)
Insertion Loss: < 1dB
Frequency Response: +0/–1 dB (70Hz – 15kHz, at 70 V tap/40 ohms load
or 100 V tap/80 ohms load, 1 watt output)
Dimensions (W x H x D) : 8.2” X 1.7” X 7” (209 mm x 44 mm x 178 mm)
Net Weight: 2.1 Kg (4.6 lbs)
Shipping Weight: 2.5 Kg (5.6 lbs)
Specifications

17
Installation
CAUTION: Before you begin, make sure that the amplifier is disconnected from
the power source and all level controls are turned completely down (counter-
clockwise).
1. If you need to mount the transformer module to rack, use a standard 19-inch
(48.3-cm) equipment rack (EIA RS-310B) . You can have the following options
according to your application:
• Rack mounting the transformer module with a CSA-2120 amplifier
• Rack mounting single unit
• Wall mounting
2. Connect the input of the transformer module to the output of the CSA-2120
amplifier with the shipped 4-pin cable.
3. Determine the proper transformer module tap to use, based on the desired
constant-voltage of your system.
CST-2120 Connection

18
Output Power (two channels at 1 kHz
power, THD+N<0.5%):
4 Ohms 120 W
8 Ohms 120 W
Frequency Response
(1 watt into 4 or 8 Ohms):
+1/-1 dB
Load Impedance: Rated for 4 or 8 Ohms
Sensitivity (8 Ohms load): 1.4 Vrms
Signal to Noise Ratio (below rated
8-Ohm power at 1 kHz, A weighted):
>100 dB
Crosstalk (Below rated power): >70dB from 20Hz to 1kHz;
>50dB at 20kHz
Input Impedance (nominal): Balanced: 20 k Ohms
Unbalanced: 10 k Ohms
AC Line Voltage and Frequency
Configurations Available:
100-240 V, 50/60 Hz
Maximum Input Signal: +20 dBu typical
Operating Temperature: 0° C to 40° C at 95% relative humidity
(non-condensing)
Auto-Standby: Auto-Standby recovery time: <1ms
Auto-Standby recovery threshold: – 60dBu
Dimensions (W x H x D) : 8.2” x 1.7 x 7” (209 mm x 44 mm x 178 mm)
Net Weight: 1 kg (2.1 lbs)
Shipping Weight: 1.7 kg (3.8 lbs)
Appendix C: AC Power Draw and Thermal Dissipation
Appendix B: Amplifier Specifications

19
Appendix D: Contact Information
For additional information, please consult JBL Professional Customer Service, your
system installer or retailer.
On The World Wide Web:
www.jblcommercialproducts.com
Professional Contacts, Outside the USA:
Contact the JBL Professional Distributor in your area. A complete list of JBL Professional
international distributors is provided at our U.S.A. Website: www.jblpro.com

Part Number: 5009280 Issue: 01/12
JBL Commercial
8760 South Sandy Pkwy.
Sandy, UT 84070 USA
[phone]