Schematic, Introduction, Features

SCHEMATIC

INTRODUCTION

Thank you for your purchase of the Rolls RA62b Stereo Headphone Amplifier.The ROLLS RA62b is a six-channel headphone/earphone amplifier for professional audio monitoring. It is intended for recording studios, sound reinforcement, and audiophile listening environments where full frequency response signal(s) are to be distributed to up to six individuals. A variety of input options are available including 1/4", RCA, and balanced XLR. Since the MONO/STEREO switch is after the pan control, it will mix 2 MONO signals and their balance can be adjusted with the Pan control. Up to six individual monitor mixes may be listened to via the rear panel insert jacks. The RA62b features a FR4 double sided circuit board, socketed integrated circuits, and painted steel chassis.

This manual assumes the user has a basic knowledge of audio electronic equip- ment.

FEATURES

•6: 1/4" Headphone and 6: 1/8" (3/5 mm) Earphone Outputs per channel with Level Controls

•1/4" and 1/8" Outputs may be used simultaneously

•1/4", RCA and XLR Inputs

•6 TRS Stereo Insert jacks for separate use of each channel

•Up to 600 mW output per jack - it's loud

•Stereo/Mono Switch - allows mixing 2 mono signals

•Front and rear panel input jacks

•May be used as a six channel Distribution Amplifier

•FR4 Double-sided fiberglass epoxy circuit board

•Socketed ICs

•Made in the U.S.A.

WARNING

USING THIS SYSTEM AT EXCESSIVE VOLUMES CAN CAUSE

PERMANENT HEARING DAMAGE.

USE AS LOW A VOLUME AS POSSIBLE

In order to use this system safely, avoid prolonged listening at excessive sound pressure levels. Please use the following guidelines established by the Occupa- tional Safety Health Administration (OSHA) on maximum time exposure to sound

pressure

before hearing damage occurs.

90 dB SPL at 8 hours

95 dB SPL at 4 hours

100 dB SPL at 2 hours

105 dB SPL at 1 hour

110 dB SPL at 1/2 hour

115 dB SPL at 15 minutes

120 dB SPL - avoid or damage may occur

RA62b specifications

The Rolls RA62b is a prime example of cutting-edge aerospace engineering, pushing the boundaries of performance and efficiency in modern aviation. Developed by Rolls-Royce, known for their innovative approach to jet engine design, the RA62b reflects a commitment to advancing technology in the aviation sector.

One of the standout features of the RA62b is its exceptional thrust-to-weight ratio. This engine boasts a maximum thrust output of around 20,000 pounds, making it ideal for medium to large aircraft. Its lightweight design is achieved through the use of advanced materials, including titanium and composite substrates that ensure durability while minimizing weight. This innovation allows aircraft to achieve higher speeds and better fuel efficiency during flights.

In terms of technology, the RA62b integrates state-of-the-art aerodynamics with sophisticated computational fluid dynamics simulations. These simulations help optimize the engine's airflow, minimizing drag and enhancing overall performance. The design incorporates a high bypass ratio, which significantly enhances fuel economy by allowing a larger proportion of air to bypass the core of the engine. This feature not only improves efficiency but also reduces noise output, catering to strict environmental regulations and passenger comfort standards.

The RA62b is equipped with an advanced digital control system that monitors performance in real time, ensuring optimal performance under various operational conditions. This system enables pilots to receive data on engine performance, fuel consumption, and maintenance needs, allowing for proactive management of engine health.

Another remarkable characteristic of the RA62b is its modular design, which simplifies maintenance and reduces downtime. The engine can be serviced and replaced in a fraction of the time compared to conventional engines, providing airlines with increased operational availability and reduced costs.

Safety is a paramount consideration in the design of the RA62b. It features multiple redundant systems that ensure reliability, even in the event of a failure. The engine is rigorously tested to meet or exceed international safety standards, giving operators peace of mind in its performance.

In summary, the Rolls RA62b stands as a testament to Rolls-Royce's dedication to innovation in aerospace technology. Its combination of high efficiency, powerful thrust, and advanced monitoring systems positions it as a top contender in the market, meeting the demands of modern aviation while paving the way for future developments in engine technology.