musikelectronic geithain MO-2 User manual
musikelectronic geithain
MO-2
Instructions for installation and use
TABLE OF CONTENTS II
musikelectronic geithain GmbH MO-2
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 MO-2
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 MO-2
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 MO-2
3 System description
The loudspeaker of the type MO-2 is a compact studio monitor of our MO series. It is qualied for
the use in near-eld and middle-eld applications as well as in outside broadcasting vans. With
multichannel application we recommend the supplement by one of our active bass loudspeakers.
Because of the construction in an active coaxial 2-way technology we can ensure sound colour
compatibility to our studio control monitor loudspeakers. Moreover, by that constructive measure
we can achieve high naturalness and homogeneity of the irradiated sound event. Also with regard
to localization and the feasibly minimum imaging of phantom sound sources the MO-2 is seamless
matched to all the loudspeakers of the RL and MO series. The directivity index was determined in
such a manner that an operation is feasible up to 1m minimum base width.
The loudspeaker unit is supplied with a 160mm cone driver and a 25mm dome tweeter arranged
coaxially. They are powered by separate MOSFET power ampliers with an active crossover and
electronic protection circuit in the back part of the cabinet. The MO-2 contains symmetric XLR input
with calibrated input level adjustment. According to the position of the monitor box the amplitude/
frequency curve can be well matched in the low- and in the high-frequency range as well as in the
region about 300Hz by means of the controls on the back side.
A two-coloured LED indicates the state of the amplier and warns of clipping. The loudspeaker is
magnetically shielded for compensating stray elds.
The design of the box is nished in MDF with wood veneer. Various special stands and holds are
available as optional extras. The corresponding appliances are integrated in the case.
BASIC INFORMATION 4
musikelectronic geithain GmbH MO-2
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 MO-2
;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 MO-2
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 MO-2
;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 MO-2
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.
For optimum listening experience a minimum distance of 50 cm (19.7″) to walls and furniture should
be ensured. Avoid corner installations because unwanted bass accentuation could arise.
b
b
;Minimum distance to wall b ≥ 50 cm (19.7″)
POSITIONING 8
musikelectronic geithain GmbH MO-2
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 m (3′3″) or more than 2.6 m (8′6″) 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 = 1 m … 2.6 m (3′3″ … 8′6″)
;Adjust the speaker horizontally to the height of the ear at the listening position
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