Sennheiser Portable Speaker Audiobeam User Manual

Audiobeam  
Instructions for use  
 
Contents  
Thank you for choosing Sennheiser!  
We have designed this product to give you reliable operation over many years. Over half a  
century of accumulated expertise in the design and manufacture of high-quality electro-  
acoustic equipment have made Sennheiser a world-leading company in this field.  
Please take a few moments to read these instructions carefully, as we want you to enjoy your  
new Sennheiser products quickly and to the fullest.  
1
 
Safety instructions  
Warning – High Voltage – Risk of Death!  
Opening the Audiobeam while it is connected to the mains is likely to result in a life-  
threatening electric shock!  
There are no user serviceable parts inside – if the Audiobeam should become defective, any  
repairs must be carried out by an official Sennheiser Service Partner. If the unit is opened in  
breach of this instruction, the warranty becomes null and void.  
Risk of fire!  
Audiobeam generates heat! Make sure that the air vents of the unit are not covered or  
blocked! Keep Audiobeam away from heat sources and never expose Audiobeam to direct  
sunlight! Maintain a minimum distance of 1 meter between Audiobeam and combustible  
materials.  
Attention!  
If liquids or small parts which conduct electricity find their way into the interior or to the  
connecting sockets of Audiobeam, this can cause a short circuit! Use Audiobeam in dry rooms  
only and keep liquids and small parts which conduct electricity away from the unit and its  
connecting sockets. For cleaning Audiobeam, only use a dry or slightly damp cloth. Never use  
any solvents or cleansing agents.  
Is there a danger of hearing damage?  
A new study tested the Audiobeam for possible damage to hearing due to the ultrasound it  
emits and certified its harmlessness. In this study, Prof. Dr.-Ing. Joachim Herbertz, the  
President of the first International Ultrasonics Congress, came to the following conclusion:  
“The ultrasound emitted by the Sennheiser Audiobeam is safe at a minimum distance of 20  
cm from the protective grid”.  
The limit values of the European and international standards and guidelines IEC 71672-1, IEC  
61012, GEFAU N 01 and 2003/10/EG are complied with.  
How Audiobeam works  
Audiobeam is an acoustic spotlight. This means:  
y Audiobeam is able to focus sound – either directly or via reflections on a surface. This allows  
e.g. information in museums and at exhibitions to be radiated directly from the exhibits –  
only visitors standing directly in front of an exhibit are addressed.  
y Audiobeam limits sound reproduction to precisely defined areas – adjacent areas are kept  
sound-free. This helps to create a calmer overall atmosphere in rooms. Several Audiobeams  
can be installed in one room without affecting each other.  
y Astonishing audio effects amaze visitors as Audiobeam allows the sound to come from  
unusual directions.  
Audiobeam uses state-of-the-art ultrasonic sound transmission technology:  
Audiobeam works with ultrasound, modulating the audible sound onto an ultrasonic carrier  
frequency. Due to the nonlinearity of air, the desired audio signal is produced by the self-  
demodulation effect of the ultrasound wave. At an angle of 30°, a slim sound beam is created  
that can be heard over long distances.  
2
 
           
Connections and operating controls  
Delivery includes  
¾
y Audiobeam  
y 3 mains cables with connectors  
5
y /83" thread with adapter  
to /8" thread  
y Instruction for use  
y Warranty Certificate  
·
³
»
¾
º
¾
¿
´
²
µ
³ LED operation indicator: green: Audiobeam is operational (standby)  
red: Audiobeam is not operational  
· Sensitivity selector switch (+6 dBm, –14 dBm)  
» On/off switch for distance sensor is set to “ON”  
(please observe “Distance sensor” on page 4 and following!)  
¿ XLR-3 socket for audio input INPUT  
´ OVERLOAD LED  
² BNC socket for carrier signal output OUTPUT  
5
3
/8" thread with adapter to /8" thread  
º IEC mains socket  
¾ Air vents  
µ Steel clamp for securing the mains cable  
3
 
 
Mounting Audiobeam  
Correct mounting conditions  
̈ When mounting Audiobeam, make sure that:  
y the ultrasonic sound wave can travel undisturbed for at least 1 m before it strikes the  
first surface.  
y a minimum distance of 10 cm is maintained between Audiobeam and adjacent objects  
so that any heat generated can dissipate. Make sure that the air vents at the top and  
rear of the unit are not covered or blocked!  
y a minimum distance of 1 meter is maintained between Audiobeam and combustible  
materials.  
y Audiobeam is kept away from heat sources such as central heating radiators, spot lights  
and lamps. Never expose Audiobeam to direct sunlight.  
y Audiobeam never gets wet.  
Mounting Audiobeam in a fixed position  
To ensure that Audiobeam is always orientated towards the correct area of interest, you  
should mount Audiobeam in a fixed position. Use a mounting plate for wall or ceiling  
mounting. For mobile installations, use a table or floor stand (see “Accessories”‘ on page 5).  
5
̈ Screw the mounting plate or the table or floor stand to the /8" thread. Use the thread  
adapter if necessary.  
̈ By using a gooseneck or swivel joint (see “Accessories”‘ on page 5), directly orientate  
Audiobeam towards the correct area of interest or the reflection area.  
Mounting Audiobeam movably or rotatably  
5
̈ Screw Audiobeam onto a drive mechanism or a rotating mechanism using the /8" thread.  
Use the thread adapter if necessary.  
Distance sensor  
For reasons of test engineering, a distance sensor ³ with a switch » is located on the bottom  
right of the emitter surface.  
If the distance sensor is “on”, the Audiobeam turns off whenever persons or objects are  
situated at a distance of less than four meters in the emitting direction of the Audiobeam.  
For this reason, the distance sensor is factory-preset to “off” and should as a rule stay like this  
during operation in order to prevent automatic turn-off (for further information, please refer  
to the service instructions).  
»
³
Putting Audiobeam into operation  
̈ Ensure that Audiobeam is not connected to the mains !  
̈ Use the sensitivity selector switch · to adapt Audiobeam’s input sensitivity to the audio  
source:  
y Audio sources with a high output power (e.g. mixing console, CD or DVD player):  
upper position (+6 dBm).  
·
y Audio sources with a low output power (e.g. portable mini disk player):  
lower position (–14 dBm).  
4
 
           
̈ Use an XLR-3 cable to connect the audio source (e.g. CD or DVD player, mixing console,  
receiver of a wireless microphone) to the audio input INPUT ¿.  
Audiobeam automatically emits ultrasound as soon as an audio signal (see  
“Specifications”‘ on page 6) is present at the audio input INPUT ¿.  
̈ Use the mains cable º to connect Audiobeam to the mains. Secure the mains cable with  
the steel clamp µ.  
̈ The LED operation indicator ³ lights up green, indicating that Audiobeam is ready for  
operation (standby).  
µ
Note: If you do not use the unit for a period, disconnet the mains connector from the wall  
socket. This helps to increase the service life of Audiobeam and save energy.  
Troubleshooting  
If the LED operation indicator ³ lights up red, one of the following problems may have  
occured:  
On/off switch for distance sensor is activated  
̈ Someone has entered the security area of four meters in front of or around the Audiobeam  
and the motion sensor has triggered. After the person has left this area, Audiobeam  
automatically turns on again after 30 seconds.  
³
̈ Solution: Set the on/off switch for the distance sensor » to “off”.  
Audiobeam is defective  
̈ Please contact your Sennheiser distributor or the Sennheiser Service department (for  
address, see last page).  
Accessories  
The following accessories are available from your Sennheiser distributor:  
GZP 10 Mounting plate for wall and ceiling mounting  
1
GZG 1029 Swivel joint for attachment to stands or the GZP 10 mounting plate, includes /4"  
interchangeable thread  
3
MZT 14 Mounting bolt for mounting goosenecks and swivel joints with /8" thread to table tops  
MZT 100 Stable, metal table stand with /8" thread  
3
3
MZT 1019 Mounting bar for two units with /8" internal thread  
3
SEMS 3134 Floor stand with /8" thread  
5
 
   
Specifications  
Modulation:  
wideband AM  
Carrier frequency:  
Peak limiter:  
40 kHz  
limiter amplifier  
Audio channels:  
Audio input:  
1
XLR-3F socket, balanced, DC-isolated  
Input level for max. peak SPL: +6 dBm (1.55 V) = upper switch position  
–14 dBm (150 mV) = lower switch position  
Switching threshold:  
–46 dBm (4 mV) = upper switch position  
–66 dBm (0.4 mV) = lower switch position  
Impedance:  
600  
Sound pressure level:  
Output:  
75 dB ± 5 dB (at a distance of 4 m)  
1 x BNC, 50 shortcircuit-proof  
approx. 90 W  
Amplifier power:  
Power supply:  
switchable power supply 110 - 240 V,  
50 - 60 Hz max. 100 W  
Dimensions:  
Weight:  
264 x 82 x 320 mm  
approx. 4 kg  
XLR-3 pin assignment:  
+NF  
1
2
3
-NF  
6
 
 
Manufacturer declarations  
Warranty regulations  
The guarantee period for this Sennheiser product is 24 months from the date of purchase.  
Excluded are accessory items and disposable batteries that are delivered with the product;  
due to their characteristics these products have a shorter service life that is principally  
dependent on the individual frequency of use.  
The guarantee period starts from the date of original purchase. For this reason, we  
recommend that the sales receipt be retained as proof of purchase. Without this proof (which  
is checked by the responsible Sennheiser service partner) you will not be reimbursed for any  
repairs that are carried out.  
Depending on our choice, guarantee service comprises, free of charge, the removal of material  
and manufacturing defects through repair or replacement of either individual parts or the  
entire device. Inappropriate usage (e.g. operating faults, mechanical damages, incorrect  
operating voltage), wear and tear, force majeure and defects which were known at the time  
of purchase are excluded from guarantee claims. The guarantee is void if the product is  
manipulated by non-authorised persons or repair stations.  
In the case of a claim under the terms of this guarantee, send the device, including acces-  
sories and sales receipt, to the responsible service partner. To minimise the risk of transport  
damage, we recommend that the original packaging is used. Your legal rights against the  
seller, resulting from the contract of sale, are not affected by this guarantee.  
The guarantee can be claimed in all countries outside the U.S. provided that no national law  
limits our terms of guarantee.  
CE Declaration of Conformity  
This equipment is in compliance with the essential requirements and other relevant  
provisions of Directives 1999/5/EC, 89/336/EC or 73/23/EC. The declaration is available on  
Before putting the device into operation, please observe the respective country-specific  
regulations!  
WEEE Declaration  
Your Sennheiser product was developed and manufactured with highquality  
materials and components which can be recycled and/or reused. This symbol  
indicates that electrical and electronic equipment must be disposed of separately  
from normal waste at the end of its operational lifetime.  
Please dispose of this product by bringing it to your local collection point or recycling centre  
for such equipment. This will help to protect the environment in which we all live.  
7
 
       
Sennheiser electronic GmbH & Co. KG  
30900 Wedemark, Germany  
Phone +49 (5130) 600 0  
Fax +49 (5130) 600 300  
Printed in Germany  
Publ.05/06  
089056/A1  
 

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