INTRODUCTION

 

SPECIFICATIONS

 

 

 

 

 

 

 

 

 

Thank you for your purchase of the Rolls RA53b Stereo Headphone Amplifier.

Input Impedance:

10 K ohms

This unit was designed to provide years of dependable service. Please read this

Max Input Level:

+18 dBV

manual carefully to ensure proper operation.

Max Gain:

26 dB per channel

The RA53b is a five-channel headphone/earphone amplifier with a variety of input

Maximum Output Power:

300 mW per channel

options. In addition to the four master mix inputs, four separate mixes may be

Output Impedance:

10 Ohms

monitored using the main inputs and the three Insert jacks on Channels 1, 2, and

S/N Ratio:

>90 dB

3.

 

THD:

<.08%

A 1/4” JOIN Input/Output jack is provided for connecting two RA53b units to-

IMD (SMPTE):

<.08%

gether, providing up to ten channels of headphone monitoring.

Power:

12 VAC\DC

Finally - the RA53b is loud. It has plenty of gain for operation in noisy environ-

 

 

(Adapter Provided)

ments, and works with most any headphone impedance.

Size:

8.4” x 1.7” x 5”

 

 

 

 

(21.3 x 4.3 x 13 cm)

INSPECTION

 

Weight:

2.5 lbs (1.14 kg)

1. Unpack and inspect the RA53b 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 complete our online Warranty Registration by visiting our website;

 

 

 

www.rolls.com. Click on the REGISTER YOUR WARRANTY HERE line. Or,

 

 

 

complete the Warranty Registration Card and return it to the factory.

 

 

 

TABLE OF CONTENTS

 

 

 

 

Introduction

1

 

 

 

Inspection

1

 

 

 

Table of Contents

1

 

 

 

Description

 

 

 

 

Front Panel

2

 

 

 

Rear Panel

2

 

 

 

Connection

3

 

 

 

Operation

4

 

 

 

Schematic

5

 

 

 

Specifications

6

 

 

 

Warranty

Back Cover

 

 

 

1

6

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Rolls RA53b owner manual Introduction Specifications, Inspection, Table of Contents
Page 1 Page 3

RA53b specifications

The Rolls RA53b is a pioneering aircraft engine that showcases the advancements in aerospace technology, primarily designed for modern commercial aircraft. This turbojet engine is known for its high efficiency and power output, making it a preferred choice for various aviation applications.

One of the main features of the Rolls RA53b is its innovative bypass design. The engine incorporates a high bypass ratio that enhances fuel efficiency, allowing it to deliver optimal thrust while minimizing fuel consumption. This feature is especially important in the context of rising fuel costs and increasing environmental concerns regarding emissions.

The RA53b is equipped with advanced aerodynamics in its compressor and turbine sections. The multi-stage axial compressor improves airflow into the combustion chamber, ensuring that the engine operates effectively at various altitudes and speeds. Additionally, the high-pressure turbine is optimized for maximum power extraction, enabling the engine to maintain performance even under significant load conditions.

Another defining characteristic of the Rolls RA53b is its use of advanced materials. The engine employs lightweight yet durable components, which contribute to its overall efficiency and longevity. Innovative cooling techniques are utilized within the turbine section, extending the lifespan of critical parts and improving reliability through enhanced thermal management.

The Rolls RA53b also integrates state-of-the-art control systems, which enhance engine responsiveness and reliability. Digital engine control systems allow for precise monitoring and adjustment of various performance parameters, ensuring optimal operation under different flight conditions. This technology not only improves performance but also enhances safety by providing real-time feedback to pilots and engineers.

In terms of noise reduction, the Rolls RA53b features acoustic liners and an optimized exhaust system. These technologies significantly reduce the engine's noise footprint, making it compliant with stringent noise regulations while ensuring a quieter, more pleasant flying experience for passengers and crew.

Overall, the Rolls RA53b represents a significant milestone in aircraft engine development, combining efficiency, power, and reliability with cutting-edge technologies. Its design principles align with the industry's drive towards sustainability, making it a formidable choice for the next generation of aircraft in a rapidly evolving aerospace landscape.
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