Rolls RA200 Introduction, Inspection, Installation, Bridging, Fault Protection, Specifications

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INTRODUCTION

Thank you for your purchase of the ROLLS RA200 Power Amplifier. The RA200 is a stereo 100 Watt per channel MOSFET power amplifier. It bridges to 200 Watts into eight ohms. It is intended for professional audio applications such as recording studios and small live performances.

INSPECTION

1. Unpack and inspect the RA200 box and package.

If obvious physical damage is noticed, contact the carrier immediately to make a damage claim. We suggest saving the shipping carton and packing materials for safely transporting the unit in the future.

2.Please visit our website; www.rolls.com, and click on the Register Your War- ranty Here text.

INSTALLATION

Connect the power cord to an AC power source, connect the input to the signal source and to the RA200 via the RCA or 1/4” input jacks. A minimum impedance of 4 Ohms Stereo, and 8 Ohms Bridged is acceptable. Lower impedances will damage the amplifier. Speakers may be connected by using the 1/4” output jacks, or the dual banana posts. Turn the Volume controls fully counterclockwise (off), and turn on the power switch, the power LED should light. With the program material running, slowly increase the Volume controls until the desired level of sound is present. There is a one second turn-on delay provided to prevent possible speaker damage in case all equipment is on a signal power strip.

BRIDGING

To bridge the RA200, first ensure the power is off. Press in the Bridging switch to the “Bridge Mono” position. The Channel 1 Volume control will be the master volume, Channel two Volume is inactive.

Connect the input to Channel 1 input, then connect the load (speakers) to the two positive (red) banana jacks. Channel 1 red is positive, Channel 2 red is negative. Make no connec- tions to the black posts. The level meters will both light, and the output power into 8 ohms is the sum of the LEDs that light.

FAULT PROTECTION

The fault protection in the RA200 limits the current to the output stage in the faulted chan- nel and turns on all the LEDs in that channel. This mode is entered whenever the output stage is called upon for too much power, it may also be fooled by impedances lower than four ohms - which may cause the output stage to overheat and burn up the MOSFETs. Since the RA200 is convection cooled, the unit radiates heat from the rear panel

and , depending on the load demand, it may become very hot if drawn upon heavily.

A NOTE ON FUSE REPLACEMENT: REPLACE THE FUSE ONLY WITH THE PROPER AMPERAGE/VOLTAGE RATING. INSTALLING A FUSE OTHER THAN THE RECOM- MENDED RATING WILL DAMAGE THE UNIT BEYOND REPAIR.

SPECIFICATIONS

100 Watts RMS/ch. 4 Ω

Power Output, Stereo:

 

70 Watts RMS/ch. 8 Ω

 

Bridged - 200 Watts RMS 8 Ω

Input Connectors:

1/4" TRS balanced and RCA

Output Connectors:

5-way binding posts

Sensitivity:

<1 VRMS for full output

THD:

<.08% (1kHz @ 1 Watt)

S/N Ratio:

106 dBU

Power Bandwidth:

DC - 30 kHz +/- 1dB

Damping Factor:

> 150

Slew Rate:

100 Volts/microSecond

Phase Shift:

<10 Deg., 20Hz - 20kHz

Input Impedance:

10 K Ohms Balanced

Power:

120 VAC 60Hz 2.5A

 

230 VAC 50Hz

Size:

19” x 3.5” x 7.5”

 

(48 x 9 x 19 cm)

Weight:

12 lbs (5.5 kg)

SCHEMATIC

 

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Contents RA200 Specifications InstallationFault Protection Schematic
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RA200 specifications

The Rolls-Royce RA200 is a standout engine designed specifically for advanced aerospace applications. As a product of Rolls-Royce’s commitment to innovation and efficiency, the RA200 boasts an impressive array of features and technologies that set it apart in the competitive landscape of aeronautical engineering.

At its core, the RA200 engine exemplifies cutting-edge design and manufacturing techniques. It employs a high-bypass turbofan architecture, which maximizes thrust while minimizing fuel consumption. This design not only enhances the environmental performance by reducing emissions but also caters to the growing demand for sustainable aviation solutions. The engine's advanced materials, including lightweight alloys and composite structures, contribute to overall performance and durability, ensuring reduced maintenance costs and extended service life.

One of the standout characteristics of the RA200 is its adaptability. The engine is capable of varying thrust outputs, allowing it to be effectively utilized in various aircraft configurations, including regional jets and large commercial airliners. The integration of digital fly-by-wire technology enhances the responsiveness of the engine, providing pilots with greater control and improving overall flight safety.

Furthermore, the RA200 features an innovative modular design, which simplifies maintenance processes. This modularity allows for quick replacement and servicing of components, reducing aircraft downtime and enhancing operational efficiency. Such design philosophy aligns with modern aviation trends, where reliability and serviceability are paramount.

Acoustic technology is another significant focus in the RA200 design. Through the implementation of advanced noise reduction systems, the engine meets stringent regulatory requirements for noise emissions, making it ideal for urban airport operations. As airports face increasing challenges related to community noise, the RA200’s technology helps mitigate these concerns, promoting smoother operations in densely populated areas.

In summary, the Rolls-Royce RA200 engine represents a perfect blend of performance, efficiency, and environmental responsibility. With its advanced engineering features, modularity, and focus on noise reduction, it is poised to meet the evolving demands of the aerospace industry while ensuring high levels of safety and operational effectiveness. The RA200 not only reflects Rolls-Royce's legacy of excellence but also their forward-thinking approach in shaping the future of aviation.