musikelectronic geithain RL930K User manual
musikelectronic geithain
RL 930K
Instructions for installation and use
TABLE OF CONTENTS II
musikelectronic geithain GmbH RL 930K
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 Mains connection 10
6.2 Cable connection 10
6.3 Adjustment controller 11
6.4 Status indication 11
7 Specications 12
8 Acoustic measurements 13
9 Notes 14
INTRODUCTION 1
musikelectronic geithain GmbH RL 930K
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 articially 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 930K
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 fulllers
and resellers only. Fulllers 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.
All rights reserved
Copyright © 2018 Musikelectronic Geithain GmbH
SYSTEM DESCRIPTION 3
musikelectronic geithain GmbH RL 930K
3 System description
The RL 930K has been designed for both the professional user at medium-size to large audio, video
and lm studios and for the discerning music enthusiast. The directivity index has been optimized
to listening distances between 2.5 and 5 metres (8′3″ to 16′5″). Low and middle frequencies are
reproduced by a specially designed 10-inch cone loudspeaker. In the treble range, the RL 930K uses
three vertically arranged 1-inch dome tweeters that are positioned coaxially in front of the woofer/
midrange system. The RL930K, a 2-way studio monitor, features our K Technology (cardioid radiation
characteristics in the bass range), which has proven reliable since many years. This technology
makes it easy to position this loudspeaker, even with respect to bass difculties, and it considerably
reduces distracting rearward-directed room reections. Thanks to the powerful integrated analogue
ampliers and the high system efciency, this loudspeaker combines the awless homogeneity of a
2-way system with a dynamic range that is otherwise limited to mostly larger 3-way designs. The
result is that non-linear distortions stay extremely low even at high reproducing levels. Moreover,
the loudspeaker features group-delay-time optimization. Summing up all the constructive measures,
the RL 930K achieves the seamless sound compatibility with all other products made in the our
manufacture. The high timbral neutrality, excellent spatial performance and depth perception,
together with fatigue-free monitoring of even most complex sound events are typical ME Geithain
characteristics of this loudspeaker.
The power amplier module with electronic crossover is integrated into the back of the cabinet and
is hinged for service purposes. An intermittent LED signalizes when the overload limit is reached. If
the maximum level is exceeded, the output level will be attenuated by 20dB in order to protect the
components from overloading. For adapting the frequency response to the acoustic characteristics of
the reproduction room, a low-frequency room compensation can be achieved within two continuously
variable frequency bands.
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 930K
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 amplier 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 930K
;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 qualied service personnel.
BASIC INFORMATION 6
musikelectronic geithain GmbH RL 930K
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 930K
;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 inuences there are no claims under guarantee.
POSITIONING 7
musikelectronic geithain GmbH RL 930K
5 Positioning
Our speakers do not impose special requirements neither in stereo nor in multichannel set-ups.
Nonetheless speaker positioning has inuence 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 reections are unavoidable.
The speakers RL930K however utilize cardioid radiation characteristics with rearward attenuation
greater than 10dB. Because of this structural measurement installation near walls is considerably
less critical. For optimum listening experience a minimum distance of 20 cm (7.9″) to walls and
furniture should be ensured. Avoid corner installations because unwanted bass accentuation could
arise.
b
b
;Minimum distance to wall b ≥ 20 cm (7.9″)
POSITIONING 8
musikelectronic geithain GmbH RL 930K
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 2.5 m (8′2″) or more than 5 m (16′5″)
should be avoided. For precise,spacial reproduction turn the speakers inside,directed to the hearing
zone.
a
a a
hearing zone
60°
;Distance between speakers and your listening position a = 2.5 m … 5 m (8′2″ … 16′5″)
;Adjust the speaker horizontally to the height of the ear at the listening position
Table of contents
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