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Rauland Communications DAX120 120-Watt Power Amplifier

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Rauland Communications DAX120 120-Watt Power Amplifier

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The Rauland DAX120 120-Watt Power Amplifier is  designed specifically for use in Rauland Institutional Program and Communications Systems.

When used in these systems, the DAX120 serves both as a high-quality program amplifier and as a DC power supply and AC power tap, thus eliminating the need for a separate DC power supply and AC power tap unit. The fully isolated DC power supply section of the DAX120 provides DC power to the Rauland Director™ Series Master Control Panels and to any associated equipment which requires 28V DC.

The DAX120’s DC power supply and AC facilities are just as useful in sound reinforcement systems as they are in institutional program and communications systems. In fact, the DAX120 can be used in any application requiring a high-quality 120-watt amplifier of unquestioned reliability.
The advanced circuitry incorporated in the  DAX120 results in improved signal-to-noise ratio, marked by enhanced phase linearity and lower distortion, concurrent with high input voltage sensitivity for a full output of 60 watts. Frequency response is 40 Hz-15 KHz, ±1.5dB at -3dB below RPO. Distortion is less than 3%, 60 Hz-15 KHz (less than 2%, 70 Hz to 10 KHz). Balanced 25V and 70.7V outputs are provided, both with split center tap. For exceptional flexibility, the amplifier is switchable to 240V AC operation. A linear tracking
thermal compensation circuit is incorporated to maintain uniform output stage bias characteristics,
thus providing optimum performance and lowest distortion, regardless of temperature extremes of
the amplifier itself or in the operating environment.
The DAX120 is designed for continuous heavy duty service and is fully capable of withstanding the widely varying operating conditions and abuses experienced in institutional, industrial, and commercial
applications. Replaceable fuse protection is provided. Excellent output regulation (less than 2dB variation from no load to full load) provides further protection form damage under adverse operating conditions. Continuous operation is assured, whether a load is connected or not, without fear of damage. Moreover, in multiple speaker systems, no detectable change in volume is experienced as additional speakers are connected or turned off.

The DAX120 provides three AC convenience outlets of the U-ground, 3-pin type. All input, output, and auxiliary DC power terminations are convenient screw types. Most circuit components are mounted on a screened circuit board which meets UL94V-0 requirements.

• Full 120-Watts RMS Power Output
• Exceptional Frequency Response
• Excellent Signal-to-Noise Ratio
• Auxiliary DC Power Output, Fully
Isolated,Circuit-Breaker Protected
• Switchable to 240V AC Operation
• Linear Tracking Thermal Compensation
• Replaceable AC Line Fuse
• Three 3-Wire AC/Grounded
Convenience Outlets
• Screw Terminals for All Connections

Rated Output: 120 Watts RMS
Frequency Response: 40 Hz-15 KHz ±1.5 dB
at -3dB below RPO
Distortion: Less than 3%, 60 Hz-15 KHz
Less than 2%, 70 Hz-10 KHz
Noise Level: 84dB below RPO (input control full on)
90dB below RPO (input control full off)
Input Sensitivity: 0.3 volts for RPO
Input Impedance: 13,000 ohms unbalanced
Output Impedance: 5.2 ohms, 25V line
41.6 ohms, 70.7V line both outputs
(balanced with split center tap)
Center Tap Balance: ±2%
Output Regulation: Less than 2dB, full load to no load
Control: Input level adjustment
Auxiliary Power Available: 1.2 amp @ 28V DC fully isolated
AC Power Consumption: 28V DC Supply 28V DC Supply
not loaded fully loaded
@ 1.2 Amps
No signal: 12 watts 50 watts
1/3 RPO: 210 watts 250 watts
RPO: 345 watts 385 watts
Power Source: Switchable for 120/240V AC operation
Line Protection: Externally replaceable fuse—4 amp
fast blow
DC Circuit Protection: Self-restoring circuit breaker
Operating Temperature Range: 0°F (-18°C) to
130°F (53°C)
AC Convenience Outlets: 3 (U-ground type), 3-pin
receptacles
Terminations: Screw terminals
Dimensions: 19″ (48.26 cm) wide, 6-3/4″ (17.14 cm) high,
6-1/2″ (16.51 cm) deep
Weight: 27 lbs. (12.24 kg)
Associated Equipment: All Rauland Communication Systems

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