Redback 500W Phase4 PA Amplifier

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Product Description
Manufactured in Australia to stringent engineering criteria, the Phase 4 amplifier series exhibit quite remarkable performance and outstanding reliability. Over 2 years in design and development, the evolution of Phase 4 included extensive consultation and input from pro sound contractors and installers across the country. The host of features incorporated commend this amplifier series to the most demanding of pro sound and industrial PA system applications. Redback Phase 4 amplifiers incorporate on demand multi-staged thermally cued fan forced cooling. The output power stage is thermally monitored enabling automatic operation of a long life computer style cooling fan to "off", "low" or "high" air flow through a specially designed tunnel heatsink. In quiescent or ordinary cycle paging mode the fan is inoperative. Over temperature sensing is employed to shut down the amplifier in extreme over heat conditions, eg extreme over load and /or over drive misuse. Re–start is automatic once normal temperatures are attained. Output peak limiting. The output voltage is limited to 105V maximum RMS voltage irrespective of load impedance to prevent damage to speaker load. Standard 100V line PA amplifiers can deliver up to 180 volts or more under conditions of high drive and very light loading. This output over voltage can quickly destroy any loudspeakers connected.

• Multi-stage thermally cued cooling
• LED bargraph VU meter
• Input signal presence indicator
• Output peak limited
• 2U 19" rack mount
• 3 pin XLR input, 3 pin XLR loop out
• Level control rear mounted
• 100V, 70V and 4 - 16 Ohm outputs
• Thermal and overload protection
• 240V AC, or 24V DC operation
• 300mA 24V battery trickle charge
• Australian made
• 10 Year warranty

Power output: 500 Watts RMS
Distortion: < 0.5%, @ 1kHz
Frequency Response: 50Hz - 15kHz, -3dB
Speaker Outputs: 100V, 70V, or 4 - 16 Ohm
Sensitivity: 500mV balanced
Signal to Noise Ratio:(Peak Limiting By-Passed) > 90 dB
Line Output: 600 Ohm balanced, 0dBV

Output Connectors
Speakers: Screw Terminals
Line Out: 3 pin XLR

Input Connectors
Inputs: 3 pin XLR balanced
24V DC Power: Screw Terminals
240V AC Power: IEC Chassis Socket

Master: Volume (on rear panel)
Power: On/Off Switch
Indicators: Power, Fault, VU Meter, Signal Present, Output Peak Limiting
Power Supply: 240V AC or 24V DC (nominal)
Protection: 10A AC Fuse and 40A DC Fuse
Dimensions: 483W x 407D (Including Handles) x 88H
Weight: 22kg

*Specifications subject to change without notice

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