ME-Geithain rl906 User manual

musikelectronic geithain
RL 906
Instructions for installation and use

TABLE OF CONTENTS 2
musikelectronic geithain GmbH RL906
Table of contents
1 Introduction 3
2 System description 4
3 Basic information 5
3.1 Guidelines 5
3.2 Safety instructions 5
3.3 Unboxing 6
3.4 Delivery contents 6
3.5 Cleaning 6
3.6 Environmental conditions 6
3.7 Guarantee acknowledgements 6
4 Positioning 7
4.1 Positioning near walls 7
4.2 Stereo operation 8
4.3 Surround operation 9
5 Connecting the speakers 10
5.1 Mains connection 10
5.2 Cable connection 10
5.3 Status indication 11
5.4 Adjustment controller 11
6 Specications 12
7 Acoustic measurements 13
8 Notes 14

INTRODUCTION 3
musikelectronic geithain GmbH RL906
1 Introduction
Dear customer,
Thank you for your 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.

SYSTEM DESCRIPTION 4
musikelectronic geithain GmbH RL906
2 System description
The RL906 is a compact two-way loudspeaker consequently optimised for usage as a near-eld
monitor. Either in an outside broadcasting van, on top of the meter bridge or in the home studio and
evenasanprecioushi-monitoritismorethanconvincing.
By Musikelectronic Geithain’s coaxial technology a directivity was realised, that is especially adjusted
to the requirements of near-eld monitoring, meaning small base widths and short listening
distances.Homogeneity,neutraltonequalityanddirectionaldenitionaremostwidelycompatibleto
the greater speakers from the RL series. This allows seamless working without familiarisation phases
along the whole audio production, regardless if it is in an outside broadcasting van, the cutting room
or in the great studio. The RL906 is barely greater than a controlling monitor, but it houses the
power capability of a full-valued studio monitor. The bass reproduction as well as the maximum level
meet the requirements of most challenges. In 5 channel applications, demanding a higher level in
the lowest frequency range, the RL906 is perfectly combined with our models from the Basis series
whereby it moves closer to the greater models.
The loudspeaker is equipped with a 13cm (5”) cone woofer and a coaxial arranged 25 mm (1”)
tweeter. Each is powered by a separate MOSFET-amplier with active crossover and electronic
overload protection. The amplier is situated in the back of the cabinet. The RL906 provides a
balanced XLR-type input with an adjustable input level. To compensate their placement, the speaker
features three controllers to continuously adjust the high- and low-frequency response and also the
frequencies around 300Hz. These controllers are attached to the cabinet’s backside. A two-coloured
LEDindicatesthestateoftheamplierandwarnsofclipping.
Avarietyofspecialstandsandracksisavailableasaccessories.Accordingxingelementshavebeen
integrated into the loudspeaker cabinet.

BASIC INFORMATION 5
musikelectronic geithain GmbH RL906
3 Basic information
3.1 Guidelines
This product complies to requirements of current European and national guidelines (Elektro-
magnetische Verträglichkeit 89/336/EWG). 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.
3.2 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.
;Do not attempt to service this product yourself as opening or removing cover may expose you
to dangerous voltage or other hazards.
;Electrical devices are not intended for use by kids.
;Operate this device only with the mains voltage stated on the backside.
;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.
;Ensuresufcientairventilationwheninstallingthedeviceinashelforwall.
;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.
;There is risk of electric shock when the device is open.
;Referallservicingtoqualiedservicepersonnel.
;Clean only with dry or slightly moistened cloth.

BASIC INFORMATION 6
musikelectronic geithain GmbH RL906
3.3 Unboxing
Unpack the speaker carefully and check for visible damages by inappropriate transport. In case of
damages report them to your retailer. Keep the packaging, in case the speaker has to be transported
in the future.
3.4 Delivery contents
;Speaker
;Mains cable
;Technical description and user manual
3.5 Cleaning
The speaker is made of real wood veneer and should be nurtured in the same way as furnishings.
We advice quality wax polish to ensure durability of the veneer. Surfaces can also be cleaned with
tidy, slightly damped, fuzz-free, smooth cloth.
3.6 Environmental conditions
Ensure the following environmental conditions:
Operating temperature + 15°C ... +35°C
Storage temperature range - 25°C ... + 45°C
Relative humidity 45 % ... 75 %
3.7 Guarantee acknowledgements
Opening the device by unauthorised 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 RL906
4 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.
4.1 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.
For optimum listening experience a minimum distance of 50cm (20’’) 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(20”)

POSITIONING 8
musikelectronic geithain GmbH RL906
4.2 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 ft) or more than 2.6 m (8.6 ft)
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 … 2.6 m (3.3 … 8.6 ft)
;Adjust the speaker horizontally to the height of the ear at the listening position

POSITIONING 9
musikelectronic geithain GmbH RL906
4.3 Surround operation
In surround operation the stereo triangle (see Stereo operation) is extended to a circle. The hearing
zone is the center of this circle. Position all speakers in the same distance to the hearing zone. The
center speaker is positioned in the middle between both front speakers. Pay attention to positioning
the front and rear speakers horizontally along one plane. The angle between center and rear
speakers should be about 110° - 120°.
60°
110° ... 120°
a
a
a
aa
hearing zone
;Distance between speakers and your listening position a = 1 … 2.6 m (3.3 … 8.6 ft)

CONNECTING THE SPEAKERS 10
musikelectronic geithain GmbH RL906
5 Connecting the speakers
In this chapter we inform you how to connect your speakers to mains and your signal source. Ensure
that the mains switch on the backside is in position “OFF”. Only when your speaker is completely
connected (see chapters 5.1 and 5.2) you can take the device into operation by use of the mains
switch.
5.1 Mains connection
Check the mains voltage stated on the backside of the device. If your local mains voltage does
notmatchthespecicationofthespeaker,pleaserefertoyourretailerordirectdistribution.When
the stated and your local mains voltage comply connect the mains connector of the speaker to the
socket with the included mains cable.
5.2 Cable connection
Theinputoftheintegratedamplieriselectricallybalanced.Whenyoursignalsourcealsoutilises
balanced connectors, please use a cable wired as stated in the table:
Balanced connector
(amplier)
Balanced connector
(signal source)
Unbalanced connector
(Signal source)
XLR XLR RCA
Erde Pin 1 Pin 1 Ring
Signal + Pin 2 Pin 2 Tip
Signal - Pin 3 Pin 3 Ring
When using a signal source with unbalanced outputs (RCA) you need to balance the connecting
cables.Thisavoidshumandothernoiseinterferences.Thetableandthefollowinggureshowthe
wiring.
Unbalanced RCA to balanced XLR Connections
Loudspeaker (XLR-3M) Cable Source (RCA)
1 2
3
To carry the signal connect the XLR socket of the speaker to your signal source.

CONNECTING THE SPEAKERS 11
musikelectronic geithain GmbH RL906
5.3 Status indication
The two-coloured LED at the front of the speaker is used as status indicator of the device.
;LED green indicates normal operation of the device
;LED red indicates the operation of the overload protection circuit;
Output power limitation to protect the components from overloading
5.4 Adjustment controller
The “Level” controller is used for level adjustment over the full frequency range.

SPECIFICATIONS 12
musikelectronic geithain GmbH RL906
6 Specications
General Active 2-way coaxial loudspeaker for listening distances
between 1 m and 2.6 m (3.3 ft and 8.6ft)
Maximum SPL
from 100Hz ... 3 kHz 104 ... 108 dB / r = 1 m (3.3 ft)
Bandwidth 50 Hz ... 20 kHz ± 3 dB
Calibration:
Acoustic output level / PE = - 14 dBu 76 dB / r = 1 m (3.3 ft)
Directivity Index
from 200Hz ... 10 kHz Increasing from 1.5 to 11dB
Inherent noise sound level ≤7dB(A)/r=1m(3.3ft)
Total harmonic distortion
measured at 83 dB / r = 1 m (3.3 ft)
from 150Hz ... 10 kHz ≤-40dB
Nominal input level + 6 dBu adjustable
Input impedance ≥10kOhmRCbalanced
Electronic crossover frequencies 3 kHz
Nominaloutputpoweramplier
LF
HF
80 W / 4 Ohm
80 W / 4 Ohm
Input connector XLR 3F
Loudspeaker systems
Woofer
Tweeter
130 mm (5”) cone
25 mm (1”) dome
Operation and clipping indicator LED on front side
Power requirements 230 V ~ ± 10 %, 50 ... 60Hz
115 V ~ ± 10 %, 50 ... 60Hz (Optional)
100 V ~ ± 10 %, 50 ... 60Hz (Optional)
Power consumption Max. 100 VA at full load
Mains connection IEC power connector
Temperature requirements
for use
for storage
humidity
+ 15°C ... + 35°C
- 25°C ... + 45°C
45 % ... 75 %
Dimensions (h x w x d) 255 x 180 x 200 mm (10 x 7.1 x 7.9 inch)
Weight 5.5 kg (12.1 lbs)
Design of the cabinet MDF wood in ash black veneered; optional other veneers
or colours
with holding device; optional without holding device

ACOUSTIC MEASUREMENTS 13
musikelectronic geithain GmbH RL906
7 Acoustic measurements
All acoustic measurements are carried out under anechoic conditions with 1m (3.3 ft) distance.
50 100 200 500 1k 2k 5k 10k 20k
90
85
80
75
70
65
[dB]
[Hz]
FREE FIELD FREQUENCY RESPONSE 0° 45°h
1
0.5
0
[%]
K2 K3
[Hz]
100 200 500 1k 2k 5k 10k
TOTAL HARMONIC DISTORTIONS PA= 83 dB

NOTES 14
musikelectronic geithain GmbH RL906
8 Notes

NOTES 15
musikelectronic geithain GmbH RL906

musikelectronic geithain gmbh
STUDIOTECHNIK - HIGHENDTECHNIK - BESCHALLUNGSTECHNIK
Nikolaistraße 7
04643 Geithain / Germany
Tel: [phone]
Fax: [phone]
E-Mail: [email protected]
www.me-geithain.de
BDARL906V2150701EN