Musikelectronic geithain RL903BK Manual de usuario

musikelectronic geithain

RL 903BK

Instructions for installation and use

TABLE OF CONTENTS II

musikelectronic geithain GmbH RL 903BK

Table of contents

1 Introduction 1

2 Disclaimer 2

3 System description 3

4 Basic information 4

4.1 Guidelines 4

4.2 Safety instructions 4

4.3 Unboxing 6

4.4 Delivery contents 6

4.5 Cleaning 6

4.6 Environmental conditions 6

4.7 Guarantee acknowledgements 6

5 Positioning 7

5.1 Positioning near walls 7

5.2 Stereo operation 8

5.3 Surround operation 9

6 Set-up the speakers 10

6.1 Connecting the RL 903BK 10

6.2 Cable connection 11

6.3 Status indication 11

7 Specications 12

8 Acoustic measurements 14

9 Notes 15

INTRODUCTION 1

musikelectronic geithain GmbH RL 903BK

1 Introduction

Dear customer,

Thank you for the trust you have put in us by buying these speakers. You decided upon a quality

product that in regard to tonal and technical characteristics complies to the utmost expectations.

The usual burn-in period is not required, because the speakers are articially aged in-house.

Please read the technical description and manual to take advantage of the capabilities

of these speakers and ensure safe operation.

DISCLAIMER 2

musikelectronic geithain GmbH RL 903BK

2 Disclaimer

Technical data and appearances are subject to changes without notice. Errors and omissions

excepted. Musikelectronic Geithain GmbH assumes no liability for any loss which may be suffered

by any person who relies either wholly or in part upon any description, photograph or statement

contained herein. Musikelectronic Geithain GmbH products are sold through authorized fulllers

and resellers only. Fulllers and resellers are not agents of Musikelectronic Geithain GmbH and

have absolutely no authority to bind Musikelectronic Geithain GmbH by any express or implied

undertaking or representation. This manual is copyrighted. No part of this manual may be reproduced

or transmitted in any form or by any means, electronic or mechanical, including photocopying and

recording, or by any information storage or retrieval system without the prior written permission of

Musikelectronic Geithain GmbH.

SYSTEM DESCRIPTION 3

musikelectronic geithain GmbH RL 903BK

3 System description

The loudspeaker of the type RL903BK is a main control room loudspeaker with cardioid radiation

characteristic within the range of 35 Hz to 250 Hz which can be applied universally in broadcast

vans of medium and large size. Through this radiation characteristic reections at the backside wall

behind the loudspeaker are minimized. The coaxial mid- and high-frequency unit is combined with

a powerful long-throw bass driver unit. By construction of the loudspeaker in coaxial technology we

can reach excellent localization behaviour and optimum imaging of phantom sources. Additionally, by

means of various constructive methods the loudspeaker produces extreme low non-linear distortions.

With the special geometric arrangement of the mid- and high-frequency driver unit as well as with

the relatively small asymmetric designed front the result gives excellent tone colour neutrality, i.e.

sound coloration at a minimum level. In spite of compact dimensions of the box a lower frequency

of 35 Hz could be reached.

The 3-way MOSFET-amplier with active crossover is integrated into the back of the cabinet and is

hinged for service purposes. An intermittent LED indicates sound pressure levels within the overload

margin of 3dB and warns of clipping. Beyond this limit the output level of the high- and mid-

frequency drivers get damped by 20dB to protect the speaker’s components.

Optionally, the mid- and high-frequency unit can be supplied revolved by 90 degrees, that way the

speaker can be installed either in vertical or horizontal position. For matching the monitor to the

room-acoustical situation within the listening room and its position, the frequency response can be

corrected at higher and lower frequencies.

A variety of special stands and racks is available as accessories. According xing elements have been

integrated into the loudspeaker cabinet.

BASIC INFORMATION 4

musikelectronic geithain GmbH RL 903BK

4 Basic information

4.1 Guidelines

This product complies to requirements of current European and national guidelines (2004/108/EG

Electromagnetical Compatiblity). The conformity is ascertained, corresponding declarations and

records are deposited with the manufacturer.

Products built by us belong to B2C-class of the WEEE guidelines and must not

be disposed with domestic waste.

4.2 Safety instructions

Like using any other electrical device you should observe the following operation guidelines, safety

instructions and warning signs to ensure optimum functionality and safety of operation!

;Read these instructions carefully.

;Keep these instructions during the life cycle at a safe place. The instructions are an important

part of the product.

;Heed all warnings. Follow all instructions.

;The product may only be used in accordance with the information provided in the user manual.

Before and during the usage of the amplier please ensure that all recommendations, especially

the safety recommendations in the user manual, are adhered to.

;Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may

fall, causing serious injury, and damage to the product.

;The heat sink must not be blocked or covered. This product should not be installed unless

proper ventilation is provided or manufacturer‘s instructions have been adhered to.

;Do not install the device near any heat sources.

;Do not expose the device to direct sun radiation.

;Do not install the device in rooms with high humidity.

;Do not try to insert anything into device openings.

;The device shall not be exposed to dripping or splashing and no objects lled with liquids shall

be placed on the device.

;Clean only with dry or slightly moistened cloth.

;Protect the power cord from being walked on,pinched or damaged in any other way. Pay

particular attention to plugs and the point where they exit the device.

BASIC INFORMATION 5

musikelectronic geithain GmbH RL 903BK

;Do not attempt to service this product yourself as opening or removing cover may expose you

to dangerous voltage or other hazards.

;Refer all servicing to qualied service personnel.

BASIC INFORMATION 6

musikelectronic geithain GmbH RL 903BK

4.3 Unboxing

The speakers are shipped in proper condition. Unpack the speaker carefully and check for visible

damages. In case of damages report them to your retailer. Keep the packaging, in case the speaker

has to be transported in the future.

4.4 Delivery contents

;Speaker RL 903BK

;Amplier enclosure

;Speakon cable

;Mains cable

;Technical description and user manual

4.5 Cleaning

The speaker is made of real wood veneer and needs to be nurtured in the same way as furnishings.

We advise quality wax polish to ensure durability of the veneer. Surfaces can also be cleaned with

tidy, slightly damped, fuzz-free, smooth cloth.

4.6 Environmental conditions

Ensure the following environmental conditions in your listening room:

;Operating temperature +15 °C ... +35 °C (+59 °F ... +95 °F)

;Storage temperature range −25 °C ... +45 °C (−13 °F ... +113 °F)

;Relative humidity 45 % ... 75 %

4.7 Guarantee acknowledgements

Opening the device by unauthorized personnel leads to all claims under guarantee expire. In case of

destruction by overload, misuse or outside inuences there are no claims under guarantee.

POSITIONING 7

musikelectronic geithain GmbH RL 903BK

5 Positioning

Our speakers do not impose special requirements neither in stereo nor in multichannel set-ups.

Nonetheless speaker positioning has inuence on listening impression because every room is

individually designed and furnished. The following advices are just guidelines that ease proper

positioning. In addition we offer a measurement service to take advantage of the capabilities of your

listening environment.

5.1 Positioning near walls

When speakers are installed near walls sound quality is physically affected. Every customary speaker

behaves as a punctual sonic source in the low frequency range, with sonic waves spherical radiated

without any constructional measures. Back wall reections are unavoidable.

;Minimum distance to wall b ≥ 20 cm (7.9″)

POSITIONING 8

musikelectronic geithain GmbH RL 903BK

5.2 Stereo operation

The optimum position of the speakers in your listening environment is the so-called stereo triangle

(see gure). The base distance between the speakers and the distance to the hearing zone form

an equilateral triangle (stereo triangle). A distance less than 1.5 m (4′11″) or more than 3 m (9′10″)

should be avoided. For precise,spacial reproduction turn the speakers inside,directed to the hearing

zone.

a a

hearing zone

60°

;Distance between speakers and your listening position a = 1.5 m … 3 m (4′11″ … 9′10″)

;Adjust the speaker horizontally to the height of the ear at the listening position

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