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www.redbackaudio.com.au

Redback® Proudly Made In Australia

2

Redback® A 4377/87

 Four Input Public Address Amplifier

Australian Made Status

The new adoption of the Australian Made logo will help us get the word out to local and export markets that our 
products carry the official compliance seal of the Australian Made campaign. We have always pushed our ‘local is better’ 
line in all of our marketing efforts, it’s always an added boost when you are backed up by a widely recognised and
respected icon.

Industry leading 10 year warranty.

There’s a reason we have the industry leading DECADE warranty. It’s because of a long tried and tested history of 
bulletproof reliability. We’ve heard PA contractors tell us they still see the original Redford amplifier still in service in schools 
- that’s over 40  years of operation - and still going strong!

Since

 

1976

 

Redback

 

ampli

ers

 

have

 

been

 

manufactured

 

in

 

Perth,

 

Western

 

Australia.

 

With

 

over

 

40

 

years

 

experience

 

in

 

the

 

commercial

 

audio

 

industry,

 

we

 

offer

 

consultants,

 

installers

 

and

 

end

 

users

 

reliable

 

products

 

of

 

high

 

build

 

quality

 

with

 

local

 

product

 

support.

 

We

 

believe

 

there

 

is

 

signi

cant

 

added

 

value

 

for

 

customers

 

when

 

purchasing

 

an

 

Australian

 

made

 

Redback

 

ampli

er

 

or

 

PA

 

product

All

 

Redback

 

house

 

products

 

will

 

now

 

be

 

sporting

 

the

 

of

cial

 

Australian

 

Made

 

logo.

 

Since

 

starting

 

manu-

 

facturing

 

of

 

commercial

 

audio

 

equipment

 

in

 

the

 

mid

 

70’s

 

we

 

have

 

always

 

taken

 

pride

 

in

 

producing

 

a

 

quality

 

local

 

product.

Summary of Contents for A 4377

Page 1: ...E Please read these instructions carefully from front to back prior to installation They include important setup instructions Failure to follow these instructions may prevent the unit from working as...

Page 2: ...ried and tested history of bulletproof reliability We ve heard PA contractors tell us they still see the original Redford amplifier still in service in schools that s over 40 years of operation and st...

Page 3: ...and DC provide excellent fault condition protection and robust performance The amplifier also utilises a half power mode which enables the amplifier to continue to run at a reduced output level if it...

Page 4: ...d indicates the unit has power 7 24V DC Indicator This LED indicates when the amplifier is being powered from the 24V input 8 Fault Indicator This led indicates when the amplifier has a fault 9 Peak L...

Page 5: ...RCA line inputs with a 1V input sensitivity The line input dual RCA connectors are internally mixed to produce a mono input signal 5 Tape Out Dual RCA s provided for recording purposes This is a line...

Page 6: ...cted to input 2 Fig 4 i Wiring speakers in parallel for 70 100V line Where several speakers are to be used at one time on one circuit it becomes necessary to use speakers fitted with line matching tra...

Page 7: ...x muting is provided on inputs one and two which when activated automatically mutes the other inputs The VOX1 switch when set to ON will allow input 1 to mute inputs 2 3 The VOX2 switch when set to ON...

Page 8: ...n correct output Amplifier Keeps on Cutting In Out Make sure that there is adequate ventilation around the amplifier Check the vent slots on the front top and sides are not covered or blocked and the...

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