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Redback® Proudly Made In Australia 23
Specifications
4.0 SPECIFICATIONS
POWER OUTPUTS
A 4275: .................................125 watts RMS
A 4285: .................................250 watts RMS
Distortion:..........................< 0.5%, @ 1kHz
Output line: ...............70V, 100V or 4 - 16O
Line output:..............600O balanced, 0dBV
FREQUENCY RESPONSE
Mic inputs:....................50Hz - 12kHz, -3dB
Line inputs: ..................50Hz - 15kHz, -3dB
SENSITIVITY
Mic inputs: ............................3mV balanced
Line inputs:.................................100mV-1V
SIGNAL TO NOISE RATIO
Mic inputs: .........> 75dB below rated output
Line inputs:........> 81dB below rated output
OUTPUT CONNECTORS
Speakers: ...........................Screw terminals
Line out: .......................................3 pin XLR
INPUT CONNECTORS
Inputs: ........3 pin XLR balanced or 2 x RCA
24V DC power: ...................Screw terminals
240V AC power: .........IEC power connector
Muting:PTT via microphone switch contacts
or VOX muting (inputs 1-3)
CONTROLS
Mic inputs: .......................................Volume
Line inputs:......................................Volume
Bass:..................................±10dB @ 100Hz
Treble:................................±10dB @ 10kHz
Master: .............................................Volume
Power: .....................................On/off switch
Indicators:...............Power, fault, VU meter,
signal present, output peak limiting, overtemp
Power Supply: .............240V AC or 24V DC
FUSE PROTECTION
A 4275: ...............................5A AC , 10A DC
A 4285: ............................7.5A AC , 20A DC
Switched 24VDC 1A Internal (both models)
DIMENSIONS
All models: ................≈483W x 330D x 88H
WEIGHT
A 4275: ............................................≈14.5kg
A 4285: ............................................≈19.5kg
Colour:.................................................Black
*Specifications subject to change without notice
