Meet the needs of medium-sized professional public address installations with the Redback 40W, 60W & 100W RMS Public Address (PA) Amplifier. Designed for versatility and reliability, this amplifier is perfect for schools, public halls, workshops, and sporting complexes. It delivers 40W, 60W & 100W RMS output power with a frequency response from 60Hz to 15kHz and a total harmonic distortion (THD) of less than 0.5%.

Features

• VOX Muting: Input 1 (mic or line) mutes inputs 2-3, and input 2 (mic or line) mutes input 3.
• Three Balanced Microphone Inputs: With phantom power for clear and consistent audio quality.
• Three Line RCA Inputs: For connecting various audio sources.
• Bass and Treble Controls: Customize the sound to suit your environment.
• 100V Line Output: Ideal for long-distance audio distribution.
• Flexible Power Options: Operates on 240V AC mains or 24V DC for battery backup during power failures.
• Short Circuit Protection: Built-in thermal overload shutdown to safeguard the amplifier.
• 19” Rack Mount Kit Included: Easy integration into professional audio setups.
• Tape Output RCA Sockets: For recording or connecting additional equipment.
• Optional Add-ons:

A 4573 Alert/Evac Option Board: Generates pre-chime, bell, alert, and evacuation tones with adjustable delay.

A 4373 Digital Remote Volume Option Board: Allows remote volume adjustment via A 2280B wall plate.

• Australian Designed & Assembled: Quality craftsmanship you can trust.

Specifications

• Power Output:
  • 40 watts RMS (A4037)
  • 60 watts RMS (A4043)
  • 100 watts RMS (A4047)
• Distortion: < 0.5% @ 1kHz
• Signal to Noise Ratio: Typically 75dB below rated output. All inputs
• Mic inputs: 50Hz - 10kHz, -3dB
• Line inputs: 60Hz - 15kHz, -3dB
• Output line: 100V
• Mic 1-3: 3mV
• Line inputs 1-3: 300mV
• Speakers: Screw terminals
• Current Draw:
  • 220mA Standby, 3A Full @ 24V DC (40w A4037)
  • 220mA Standby, 4.5A Full @ 24V DC (60w A4043)
  • 220mA Standby, 7A Full @ 24V DC (100w A4047)
• Protection:
  • 1A AC fuse and 4A DC fuse (40w A4037)
  • 2A AC fuse and 5A DC fuse (60w A4043)
  • 4A AC fuse and 8A DC fuse (100w A4047)
• Weight:
  • 7.1kg (40w A4037)
  • 7.4kg (60w A4043)
  • 9kg (100w A4047)
• Dimensions: 423W x 225D x 88H mm

Input Connectors

• Mic 1-3: 3 pin XLR balanced
• Line inputs 1-3: RCA stereo socket
• 24V DC power: Screw terminals
• 240V AC power: IEC power connector
• VOX Muting: 60dB below rated output
• Remote volume: Screw terminals

Controls

• Mic inputs: Volume
• Line inputs: Volume
• Bass: ±10dB @ 100Hz
• Treble: ±13dB @ 10kHz
• Power: On/off switch
• Indicators: Power, Overload
• Power supply: 240V AC or 24V DC

*Specifications are subject to change without notice.