3
QUICK START GUIDE
AUDIO INPUTS
There are two audio inputs
on balanced XLR connectors
labelled TOP and SUB. These
provide the audio input signal
to the TOP amplifier and SUB
amplifier respectively.
AUDIO THRU OUTPUTS
There are two audio THRU
outputs on balanced
XLR connectors that are
connected in parallel to the
audio inputs. These outputs
are unprocessed and are
not buffered. They may be
used to daisy-chain multiple
amplifier units.
MODE SWITCH
This switch toggles the
amplifier between ‘INPUT Y’
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 at the input
labelled ‘SUB’ to drive the
subwoofer (SUB output).
5
6
7
POWER SUPPLY INPUT
This PowerCon connector
provides the mains power
supply to the unit.
POWER BUTTON
Turns the amplifier power on
or off.
COOLING VENTS
The vents provide air Flow to
cool the amplifier. DO NOT
BLOCK these vents.
AMPLIFIER OUTPUTS
FOR TOPS
There are two 4-pole outputs
for the tops labelled TOP A
and TOP B. Each output may
be used to power up to 2 x
BRX308-LA speakers.
1
2
3
4
AMPLIFIER PANEL OVERVIEW
1
1
2
3
4
5
6
7
Summary of Contents for JBL Professional BRX 300 Series
Page 1: ...QUICK ST ART GUIDE...
