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6

JBL BRX300 SERIES

SYSTEM SETUP EXAMPLES

4

T

he most common use case for the BRX308 system is the ground 

stack

 

option

, as shown in Figure 4.

It is advised to use an inter-box angle of at least 2° between each BRX308-LA to allow for wide enough vertical coverage of the 

high frequencies.
When ground-stacking on the subwoofer, the built-in anchor point on the subwoofer (Figure 5) allows for +ve angle values (tops 

pointing upwards). To set +ve angles for the 1st top on the sub, align the ‘Lock’ hole on the sub anchor point to the desired angle 

on the top and secure in place with the Quick Release Pin.
To set the inter-box angles, align the bottom box’s angle bar ‘Lock’ hole to match the desired angle value on the top box and lock 

it in place with the Quick Release Pin.
When setting inter-box angles of 8° and above, the angle bar of the upper box may obstruct the angle bar from the box below 

from aligning with the desired value. In such cases, the angle bar of the upper box must be stored using the Quick Release Pin in 

the ‘Standby’ hole

.

Fig. 4: Ground Stack Option

Fig. 5: BRX325SP Top View

1

Summary of Contents for JBL Professional BRX 300 Series

Page 1: ...QUICK ST ART GUIDE...

Page 2: ...HIS APPARATUS TO RAIN OR MOISTURE 17 DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR SPLASHING AND ENSURE THAT NO OBJECTS FILLED WITH LIQUIDS SUCH AS VASES ARE PLACED ON THE EQUIPMENT 18 THE MAINS PLUG OF...

Page 3: ...and DUAL input modes In INPUT Y mode the amplifiers receive their Input ONLY from the connector labelled TOP This signal drives both the SUB and TOP outputs In DUAL mode a separate signal is required...

Page 4: ...loudspeaker Up to two BRX308 LA speakers may be connected in parallel to one amplifier output Fig 2 Speaker Connectors Fig 3 BRX308 LA Angle Bar View The BRX308 LA has captive rigging hardware that al...

Page 5: ...If Input signal is present the Input LED s will light green 3 Turn your audio source up to an optimum level The BRX300 Series amplifier will begin to limit input signals at 17 dBu and the inputs begin...

Page 6: ...s for the 1st top on the sub align the Lock hole on the sub anchor point to the desired angle on the top and secure in place with the Quick Release Pin To set the inter box angles align the bottom box...

Page 7: ...1 and 12 The negative angles allow the first box to aim downwards and cover audience members that are closer to the array To set the first box at the desired ve angle value align the desired value on...

Page 8: ...Issued 6 2020 Website URLs China https jblpro com zh products brx300 Asia https jblpro com en asia products brx300 BRX300 SERIES QUICK ST ART GUIDE...

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