Keep these important operating instructions.
DS-4P Self-Powered Loudspeaker
Superior
engineering
for the art
and science
of sound.
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
CONTENTS
Safety Summary 3
Introduction 4
AC Power 4
Amplification and Protection Circuitry 6
Rigging 7
Complete Systems 8
Measurement and Systems Integration Tools 9
Driver Troubleshooting 9
Controls and Connectors 10
Specifications 11
Dimensions and Contact Information 12
DECLARATION OF CONFORMITY ACCORDING TO ISO/IEC GUIDE AND EN 45014
The Manufacturer:
M
EYER SOUND LABORATORIES, INC.
2832 San Pablo Avenue
Berkeley, California 94702-2204, USA
Declares that the product:
DS-4P
Conforms to the following Product Specifications
Safety: EN60065: 1994
EMC: EN55103-1 emmission
1
EN55103-2 immunity
2
0° to + 45°
<-40°C or > +75°C
to 95% at 35°C
to 4600 m (15,000 ft)
to 6300 m (25,000 ft)
30g 11 msec half-sine on each
of 6 sides
10Hz to 55Hz (0.010m
peak-to-peak excursion)
Office of Quality Manager
Berkeley, California USA April 21, 1999
Operating Temperature
Nonoperating Temperature
Humidity
Operating Altitude
Nonoperating Altitude
Shock
Vibration
E
NVIRONMENTAL SPECIFICATIONS FOR MEYER SOUND ELECTRONICS PRODUCTS:
This device complies with the requirements of the Low
Voltage Directive 73 / 23 / EEC and the EMC Directive 89 /
336 / EEC.
This device also complies with EN 55103-1 & -2. Operation is
subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
European Offices:
Meyer Sound Lab. GmbH
Carl Zeiss Strasse 13
56751 Polch, Germany
Made by Meyer Sound Laboratories
Berkeley, California USA
UL and CSA compliance is pending.
Call Meyer Sound for current status.
Protective earth ground
Terre de protection
Die schutzerde
Tierra proteccionista
Frame or chassis
Masse, châssis
Rahmen oder chassis
Armadura o chassis
Important operating
instructions
Pour indequer important
instructions
Zu wichtige betriebs-
anweisung und unter-
haltsanweisung zeigen
Para indicar importante
funcionar y mantenimiento
instrucciones
Dangerous voltages:
risk of electric shock
Pour indiquer les risques résultant
de tensions dangereuses
Zu die gefahren von
gefährliche spanning zeigen
Para indicar azares provengo
de peligroso voltajes
THESE SYMBOLS INDICATE IMPORTANT SAFETY OR OPERATING FEATURES IN THIS BOOKLET AND ON THE CHASSIS.
!
SYMBOLS USED
2
3K59 COMMERCIAL
AUDIO SYSTEM
3
ENGLISH
• To reduce the risk of electric shock,
disconnect the loudspeaker from the
AC mains before installing audio
cable. Reconnect the power cord only
after making all signal connections.
• Connect the loudspeaker to a twopole, three wire grounding mains
receptacle. The receptacle must be
connected to a fuse or circuit breaker.
Connection to any other type of
receptacle poses a shock hazard and
may violate local electrical codes.
• Do not install the loudspeaker in wet
or humid locations without using
weather protection equipment from
Meyer Sound.
• Do not allow water or any foreign
object to get inside the loudspeaker.
Do not put objects containing liquid
on, or near, the unit.
• To reduce the risk of overheating the
loudspeaker, avoid exposing it to
direct sunlight. Do not install the unit
near heat-emitting appliances, such
as a room heater or stove.
• This loudspeaker contains potentially
hazardous voltages. Do not attempt
to disassemble the unit. The unit
contains no user-serviceable parts.
Repairs should be performed only by
factory-trained service personnel.
FRANÇAIS
• Pour réduire le risque d’électrocution,
débrancher la prise principale de
l’haut-parleur, avant d’installer le
câble d’interface allant à l’audio. Ne
rebrancher le bloc d’alimentation
qu’après avoir effectué toutes les
connections.
• Branchez l’haut-parleur dans une prise
de courant à 3 dérivations (deux
pôles et la terre). Cette prise doit être
munie d’une protection adéquate
(fusible ou coupe-circuit). Le
branchement dans tout autre genre de
prise pourrait entraîner un risque
d’électrocution et peut constituer une
infraction à la réglementation locale
concernant les installations
électriques.
• Ne pas installer l’haut-parleur dans un
endroit où il y a de l’eau ou une
humidité excessive.
• Ne pas laisser de l’eau ou tout objet
pénétrer dans l’haut-parleur. Ne pas
placer de r´cipients contenant un
liquide sur cet appareil, ni à proximité
de celui-ci.
• Pour éviter une surchauffe de l’hautparleur, conserver-la à l’abri du soleil.
Ne pas installer à proximité
d’appareils dégageant de la chaleur
tels que radiateurs ou appareils de
chauffage.
• Ce haut-parleur contient des circuits
haute tension présentant un danger.
Ne jamais essayer de le démonter. Il
n’y a aucun composant qui puisse être
réparé par l’utilisateur. Toutes les
réparations doivent être effectuées
par du personnel qualifié et agréé par
le constructeur.
DEUTSCH
• Um die Gefahr eines elektrischen
Schlages auf ein Minimum zu
reduzieren, den Lautsprecher vom
Stromnetz trennen, bevor ggf. ein
Audio-Schnittstellensignalkabel
angeschlossen wird. Das Netzkabel
erst nach Herstellung aller
Signalverbindungen wieder
einstecken.
• Der Lautsprecher an eine geerdete
zweipolige Dreiphasen-Netzsteckdose
anschließen. Die Steckdose muß mit
einem geeigneten Abzweigschutz
(Sicherung oder Leistungsschalter)
verbunden sein. Der Anschluß der
unterbrechungsfreien Stromversorgung
an einen anderen Steckdosentyp kann
zu Stromschlägen führen und gegen
die örtlichen Vorschriften verstoßen.
• Der Lautsprecher nicht an einem Ort
aufstellen, an dem sie mit Wasser
oder übermäßig hoher
Luftfeuchtigkeit in Berührung
kommen könnte.
• Darauf achten, daß weder Wasser
noch Fremdkörper in das Innere den
Lautsprecher eindringen. Keine
Objekte, die Flüssigkeit enthalten, auf
oder neben die unterbrechungsfreie
Stromversorgung stellen.
• Um ein Überhitzen dem Lautsprecher
zu verhindern, das Gerät vor direkter
Sonneneinstrahlung fernhalten und
nicht in der Nähe von
wärmeabstrahlenden Haushaltsgeräten
(z.B. Heizgerät oder Herd) aufstellen.
• Im Inneren diesem Lautsprecher herrschen potentiell gefährliche
Spannungen. Nicht versuchen, das
Gerät zu öffnen. Es enthält keine vom
Benutzer reparierbaren Teile.
Reparaturen dürfen nur von
ausgebildetem Kundenienstpersonal
durchgeführt werden.
ESPAÑOL
• Para reducir el riesgo de descarga
eléctrica, desconecte de la red el
altoparlante antes de instalar el cable
de señalización de interfaz de la
segnale. Vuelva a conectar el
conductor flexible de alimentación
solamente una vez efectuadas todas
las interconexiones de señalizatción.
• Conecte el altoparlante a un
tomacorriente bipolar y trifilar con
neutro de puesta a tierra. El
tomacorriente debe estar conectado a
la protección de derivación apropiada
(ya sea un fusible o un disyuntor). La
conexión a cualquier otro tipo de
tomacorriente puede constituir peligro
de descarga eléctrica y violar los
códigos eléctricos locales.
• No instale el altoparlante en lugares
donde haya agua o humedad excesiva.
• No deje que en el altoparlante entre
agua ni ningún objeto extraño. No
ponga objetos con líquidos encima de
la unidad ni cerca de ella.
• Para reducir el riesgo de
sobrecalentamiento, no exponga la
unidad a los rayos directos del sol ni
la instale cerca de artefactos que
emiten calor, como estufas o cocinas.
• Este altoparlante contiene niveles de
voltaje peligrosos en potencia. No
intente desarmar la unidad, pues no
contiene piezas que puedan ser repardas
por el usuario. Las reparaciones deben
efectuarse únicamente por parte del
personal de mantenimiento capacitado
en la fábrica.
SAFETY SUMMARY
!
The self-powered DS-4P is an arrayable
mid-bass loudspeaker system which
provides high power and extremely low
distortion. It was developed to
supplement the 70-200Hz band in fullrange systems, affording additional midbass headroom.The DS-4P is most
effective when used in multiples within
an array, and it can easily be
incorporated into conventionaly powered
or self-powered systems. The DS-4P uses
two 12-inch cone drivers in a true horn
enclosure. The horn’s flare provides
maximum energy transfer in the midbands with minimum frequency response
ripple.
The DS-4P’s trapezoidal shape facilitates
the creation of loudspeaker arrays that
maximize the coverage area and SPL for
the size of the array. Two types of
rigging hardware (aircraft pan fittings
and L-Track fittings) are available to
safely suspend the DS-4P.
The DS-4P can be equipped to operate
with the Remote Monitoring System
(RMS) interface network and software
application. RMS displays signal and
power levels, driver and cooling fan
status, limiter activity, and amplifier
temperature for all loudspeakers in the
network on a Windows-based PC.
The minimum configuration of two DS4Ps have the following acoustical
specifications:
Operating Range 60 – 250Hz
Frequency Response* 70 – 200Hz
(±4dB)
Phase Response* ±70° 70–200Hz
Dynamic Range >120dB
Coverage 120°H
120°V
*Measured with one-third octave
frequency resolution in fixed ISO
bands.
4
DS-4P: INTRODUCTION
When AC power is applied to the DS-4P,
the Intelligent AC™ supply
automatically selects the correct
operating voltage, allowing the DS-4P to
be used worldwide without manually
setting a voltage switch. The Intelligent
AC power supply also performs surge
suppression for high voltage transients
(up to 275V), minimizes inrush current,
and filters EMI. Continuous voltages
above 275VAC may damage the unit! The
DS-4P uses a NEMA L6-20P or IEC 309
male power inlet and satisfies UL, CSA,
and CE safety standards.
VOLTAGE REQUIREMENTS
The DS-4P operates safely and without
audio discontinuity if the AC voltage
stays within the ranges 85–134V or
165–264V, at 50 or 60Hz. Immediately
after applying AC power, the green
Active LED on the user panel illuminates
and the proper operating voltage is
automatically selected, but the system
is muted. During the next three seconds,
the primary fan turns on, the main
power supply slowly ramps on, and the
system is enabled to pass audio signals.
TROUBLESHOOTING NOTE: If the Active
LED does not illuminate or the system
does not respond to audio input after
ten seconds, remove AC power to
avoid possible damage to the unit.
Experienced electronics technicians
with access to a test bench can verify
proper operation for the power supply
and amplifier system with The Meyer
Sound Self-Powered Series MP-2 and
MP-4 Field Verification Procedure
(part #17.033.066.01); contact Meyer
Sound to receive this document). All
other users should contact Meyer
Sound or an authorized Meyer Sound
service center.
If the voltage decreases below the lower
bounds of either operating range
(known as a brownout period), the
supply uses current from its storage
circuits and continues to function
briefly. The unit turns off if the voltage
does not increase above the threshold
before the storage circuits are depleted.
The length of time that the DS-4P
continues to operate during brownout
depends on how low the voltage drops
and the audio source level during this
period.
If the voltage fluctuates within either
operating range, automatic tap selection
stabilizes the internal operating voltage.
This tap selection is instantaneous and
there are no audible artifacts. If the
voltage increases above the upper
bound of either range, the power supply
turns off rapidly, preventing damage to
the unit.
If the DS-4P shuts down due to either
low or high voltage, the power supply
automatically turns on after three
seconds if the voltage has returned to
normal operating range. If the DS-4P
does not turn back on after ten seconds,
remove AC power and refer to the
TROUBLESHOOTING NOTE previously in
this section.
CURRENT REQUIREMENTS
The DS-4P presents a dynamic load to
the AC mains which causes the amount
of current to fluctuate between quiet
and loud operating levels. Since
different types of cables and circuit
breakers heat up (and trip) at varying
rates, it is essential to understand the
types of current ratings and how they
correspond to circuit breaker and cable
specifications.
The maximum continuous RMS current
is the maximum RMS current over a
duration of at least 10 seconds. It is
used to calculate the temperature
increase in cables, which is used to
select cables that conform to electrical
code standards. It is also used to select
the rating for slow-reacting thermal
breakers.
The maximum burst RMS current is the
maximum RMS current over a one
second duration. It is used to select the
rating for most magnetic breakers.
The maximum instantaneous peak
AC POWER
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