Harman JBL Professional BRX 300 Series Bedienungsanleitung

BRX308-LA

BRX325SP

BRX308-ACC

BRX308-PM

BRX308-AF

USER’S GUIDE

2JBL BRX300 SERIES

TABLE OF CONTENTS

SAFETY INFORMATION................................................................................. 3

Safety Instructions..................................................................................... 3

General Hardware Information.................................................................. 4

Important Safety Warning.......................................................................... 4

INSPECTION & MAINTENANCE.................................................................... 5

Inspection & Maintenance......................................................................... 5

Attachment To Structures .......................................................................... 5

ORDERING INFORMATION ........................................................................... 6

PRODUCT INFORMATION............................................................................. 7

BRX300 System........................................................................................ 7

BRX308-LA Dual 8” 2-Way Line Array Element ........................................ 8

BRX325SP Dual 15” Subwoofer Housing DSP & Amplier Module.......... 8

SYSTEM WIRING INFORMATION ............................................................... 10

SYSTEM APPLICATION GUIDE ................................................................... 11

Option 1 - Ground Stack Option.............................................................. 11

Option 2 - Pole Mount Option.................................................................. 12

ACCESSORIES.............................................................................................13

BRX308-ACC Transporter Kit ................................................................. 13

BRX308-PM Storage............................................................................... 14

BRX308-AF Array Frame ........................................................................ 15

SPECIFICATIONS ....................................................................................... 16

System Specications ............................................................................. 16

BRX308-LA Specications ...................................................................... 16

BRX325SP Specications....................................................................... 16

System Frequency Response ................................................................. 17

System Directivity.................................................................................... 17

USER’S GUIDE

Before using a JBL BRX Series system, please review the following for important information on safety and

protection of your investment.

SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not expose the product to direct rain or sea spray.

6. Clean only with a dry cloth.

7. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce

heat.

8. Only use attachments / accessories specied by the manufacturer.

9. Use only with a cart, stand, tripod, bracket, or table specied by the manufacturer or sold with the

apparatus. When a cart is used, use caution when moving the cart / apparatus combination to

avoid injury from tip-over.

10. Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been damaged

in any way, such as 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.

11. Contact JBL Professional for advanced servicing issues.

12. CAUTION – DO NOT PERFORM ANY SERVICING UNLESS YOU ARE QUALIFIED TO DO SO.

13. Prolonged exposure to excessive SPL can cause hearing damage: the loudspeaker is easily capable of

generating sound pressure levels (SPL) sucient to cause permanent hearing damage to performers, production

crew and audience members. Caution should be taken to avoid prolonged exposure to SPL in excess of 90 dB.

14. Read the System Rigging Manual before installation and use of the product.

15. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

16. 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 the third prong are provided for your safety. If the provided plug does not t into your outlet, consult an

electrician for replacement of the obsolete outlet.

17. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and

the point where they exit from the apparatus.

18. Unplug this apparatus during lightning storms or when unused for long periods of time.

19. To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug from the

AC receptacle.

20. “WARNING – TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS

TO RAIN OR MOISTURE.”

21. Do not expose this equipment to dripping or splashing and ensure that no objects lled with liquids such as

vases, are placed on the equipment.

22. The main plug of the power supply cord shall remain readily operable.

SAFETY INFORMATION

4JBL BRX300 SERIES

GENERAL HARDWARE INFORMATION

Any hardware used in an overhead suspension application must be load rated for the intended use. Generally,

this type of hardware is available from rigging supply houses, industrial supply catalogs and specialized rigging

distributors. Local hardware stores do not usually stock these products. Hardware that is intended for overhead

suspension will comply with ASME B30.20 and will be manufactured under product traceability controls. Compliant

hardware will be referenced with a working load limit (WLL) and a traceability code.

IMPORTANT SAFETY WARNING

The information in this section has been assembled from recognized engineering data and is intended for

informational purposes only. None of the information in this section should be used without rst obtaining competent

advice with respect to applicability to a given circumstance. None of the information presented herein is intended as

a representation or warranty on the part of JBL. Anyone making use of this information assumes all liability arising

from such use.

All information presented herein is based upon materials and practices common to North America and may not

directly apply to other countries because of diering material dimensions, specications and/or local regulations.

Users in other countries should consult with appropriate engineering and regulatory authorities for specic

guidelines.

Correct use of all included hardware is required for secure system suspension. Careful calculations should always

be performed to ensure that all components are used within their working load limits before the array is suspended.

Never exceed the maximum recommended load ratings.

SAFETY INFORMATION

The exclamation point within an equilateral triangle is intended to alert the user to the presence

of important operating and maintenance (servicing) information in the literature accompanying the

product.

The lighting ash with arrowhead symbol within an equilateral triangle is intended to alert the user

to the presence of uninsulated “Dangerous Voltage” within the product’s enclosure that may be of

sucient magnitude to constitute risk of electric shock to persons.

THIS APPARATUS CONTAINS POTENTIALLY LETHAL VOLTAGES. TO PREVENT ELECTRIC SHOCK OR

HAZARD, DO NOT REMOVE CHASSIS, INPUT MODULE OR AC INPUT COVERS. NO USER SERVICEABLE

PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

USER’S GUIDE

INSPECTION & MAINTENANCE

Before suspending any speaker system always inspect all components (enclosure, rigging frames, pins, eyebolts,

track ttings, etc.) for cracks, deformations, corrosion or missing/loose/damaged parts that could reduce strength

and safety of the array. Do not suspend the speaker until the proper corrective action has been taken. Use only

load-rated hardware when suspending JBL suspendable loudspeaker models.

Suspension systems are comprised of mechanical devices and, as such, they require regular inspection and routine

maintenance to ensure proper functionality. Before suspending or pole mounting any speaker system, always

inspect all components (enclosure, suspension frames or brackets, pins, eyebolts, etc.) for cracks, deformations,

corrosion or missing/loose/damaged parts that could reduce strength and safety of the array.

Do not suspend or pole mount the speaker until the proper corrective action has been taken.

Installed systems should be inspected at least annually. The inspection shall include a visual survey of all corners and

load-bearing surfaces for signs of cracking, water damage, delamination or any other condition that may decrease

the strength of the loudspeaker enclosure.

Accessory suspension hardware provided with or for BRX systems must be inspected for fatigue at least annually

or as required by local ordinance. The inspection shall include a visual survey of the material for signs of corrosion,

bending or any other condition that may decrease the strength of the fastener. Additionally, any eyebolts shall be

checked for possible spin-out of the enclosure.

For all other hardware and ttings, refer to the hardware manufacturer’s inspection and maintenance guidelines for

process.

JBL is not responsible for the application of its products for any purpose or the misuse of this information for any

purpose. Furthermore, JBL is not responsible for the abuse of its products caused by avoiding compliance with

inspection and maintenance procedures or any other abuse.

Prior to suspending the system, an expert, trained and experienced in suspending speaker systems, should inspect

all parts and components.

ATTACHMENT TO STRUCTURES

A licensed Professional Engineer must approve the placement and method of attachment to the structure prior to

the installation of any overhead object. The following performance standards should be provided to the Professional

Engineer for design purposes: Uniform Building Code as applicable, Municipal Building Code as applicable and

Seismic Code as applicable. The installation of the hardware and method of attachment must be carried out in the

manner specied by the Professional Engineer. Improper installation may result in damage, injury or death.

INSPECTION & MAINTENANCE

6JBL BRX300 SERIES

MODEL NUMBER DESCRIPTION

BRX308-LA Dual 8” line array element

BRX325SP Dual 15” subwoofer with power amplier and DSP for entire system

BRX308-ACC Accessory Kit – Transport cart for 4 x BRX308-LA, soft cover for cart, soft cover for subwoofer, speaker

cables for system

BRX308-AF Array frame for suspending up to 8 x BRX308-LA

BRX308-PM Pole mount + adapter kit

ORDERING INFORMATION

USER’S GUIDE

PRODUCT INFORMATION

BRX300 SYSTEM

The BRX300 System is a true plug and play solution that features a combination of the BRX308-LA Dual 8” 2-Way

Line Array Element and the BRX325SP Dual 15” Subwoofer that also houses a 6-channel high-power amplier

along with a 48kHz/24-bit DSP for loudspeaker tuning. All the components are packaged to maximize use of space,

ease of handling and setup.

The power and processing module features BSS Audio processing for the subwoofer and 2 circuits of 2 x BRX-

308LA, each including linear phase FIR lters and dbx limiter suite for loudspeaker protection. As such, no external

processing is required.

This system is primarily intended for ground stack use (4 x BRX308-LA + 1 x BRX325SP) and pole stacked ( 2 x

BRX308-LA + 1 x BRX325SP with the pole and adapter sold with the BRX308-PM Pole Mount Kit).

There is a third option of use as a own system (up to 8 x BRX308-LA suspended from 1 x BRX308-AF). The

subwoofers remain stacked on the ground. Each Subwoofer can power up to 4 x BRX308-LA using the built-in

power module.

SUB OUT

DSP + AMPLIFIER

TOP IN TOP A

TOP B

SUB

SIGNAL

LIMIT

CLIP

NORMAL

FAULT

NORMAL

FAULT

NORMAL

FAULT

SIGNAL

LIMIT

CLIP

TOP OUT

SUB IN

INPUT Y

8JBL BRX300 SERIES

PRODUCT INFORMATION

BRX308-LA Dual 8” 2-Way Line Array Element

The BRX308-LA combines 2 x 8” woofers with a single 3” high

frequency compression driver mounted to a purpose-built planar

waveguide that is derived from JBL Professional’s deep technology

expertise and experience with loudspeaker design.

BRX325SP Dual 15” Subwoofer Housing DSP & Amplier

Module

The BRX325SP uses 2 x 15” subwoofer transducers with ports

designed to extend low frequency response and increase eciency of

the system.

The BRX325SP ships with 4 heavy-duty castors installed on its back

that enables ease of transport while also protecting the amplier module

connectors and switches.

The BRX325SP has a rigging system that allows up to 4 x BRX308-LA

to be mounted onto it for ground stacked applications.

Additionally, a pole mount cup allows for up to 2 x BRX308-LA to be

pole mounted onto the subwoofer using components from the optional

BRX308-PM System.

The subwoofer also houses the DSP and amplier module that powers

the entire system.

The BRX308-LA has a simple yet highly ecient

rigging system that allows a lot of options to optimize

audience coverage whether used in ground stacked,

pole mounted or own conguration. Available inter-

enclosure angles are 0, 1, 2, 3, 4, 5, 6, 8, 10 and 12°.

Each BRX308-LA has 2 x Neutrik NL4 connectors

wired in parallel and can be used as system input or

as a pass through connection for daisy-chaining up to

2 cabinets in parallel for amplication with the power

module built in the BRX325SP subwoofer system.

USER’S GUIDE

PRODUCT INFORMATION

The module has a Neutrik 20A PowerCon power supply input connector for its power supply and ships with a

power cord specic to the region it is purchased in. A power switch allows the module to be powered ON or OFF.

The module has 2 XLR-F input connectors: one for the subwoofer and one for the BRX308-LA tops. These

connectors are wired in parallel to XLR-M connectors to enable daisy-chaining of input signal to other systems.

There is a switch that allows for the subwoofer and tops to share the same input (INPUT Y) or use the subwoofer on

a separate signal feed (DUAL).

The module also has 2 Neutrik NL4 output connectors (labelled TOP A and Top B) for powering 2 x BRX308-LA on

each output circuit.

The processing and power module has 7 multi-color LED Indicators used to provide feedback on power, input signal

status and amplier status.

Upon powering ON the unit, all the LED’s are lit red while the ampliers and

DSP boot up. Once the DSP and amplier are ready to pass audio, the

LED’s turn green.

The bottom-most LED—marked “POWER”—is lit green when the unit is

receiving power and is in the ON state.

The left 3 LEDS show the amplier status for each of the 3 pairs of amplier

channels that drive the SUB, TOP A and TOP B. When the LED’s are lit

green, the amplier is in the ready state and will pass audio through to the

loudspeakers.

The LED’s light red to indicate a fault with the amplier. Possible reasons

could be thermal shutdown and extended period of output limiting.

The LEDS on the right are used to indicate the status of input signal to each

of the 3 pairs of amplier channels that drive the SUB, TOP A and TOP B.

Green indicates signal presence (>=-40dBu), yellow indicates the onset of

input limiting (+17dBu) while red indicates clipping (>=21dBu) of the input

signal.

It is advised to set up the gain structure so that the yellow status lights only

come on momentarily during maximum drive level from the mixer. Extended

periods of limiting and clipping of the input signal will lead to failure of the

loudspeaker components.

10 JBL BRX300 SERIES

SYSTEM WIRING INFORMATION

The below image shows the connection diagram for the BRX308-LA tops from the amplier and DSP module.

Each output on the power amplier module can drive up to 2 x BRX308-LA tops.

The system can be driven in one of two modes:

1. INPUT Y MODE: In this mode, a single output from the mixer feeds the entire system to drive both the sub +

tops.

2. DUAL MODE: In this mode, both the sub and tops can be driven from dierent outputs of the mixer to enable

additional control over the sub + top balance of the system.

2. Dual Mode1. Input Y Mode

From MixerFrom Mixer

From Mixer Aux Out

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