HD-MA35A
INSTALLATION AND OPERATION
INTRODUCTION
Congratulations on your selection of an RDL HD-Series High-Efficiency commercial mixer amplifier. The HD-MA35A is part of the world’s highest performance full-featured high-efficiency
mixer amplifier series for commercial installations. This product includes a studio quality microphone input stage, line-level transformer isolation, equalization, remote control capability and
integral analog compression coupled to a sonically pleasing analog-filtered high efficiency Zone 1 Class D output stage. The HD-Series mixer amplifiers are designed and manufactured in the
U.S.A. using the most advanced automated manufacturing and testing processes for years of reliable high performance and cost savings.
CONNECTIONS
HD-MA35A 25/70/100 V
USE ONLY THE POWER SUPPLY
SUPPLIED WITH THE MODULE.
USE ONLY THE TERMINAL BLOCK
SUPPLIED WITH THE MODULE.
OUTPUT CONNECTIONS MUST BE MADE BY
PERSONS ADVISED OR SUPERVISED TO
AVOID DANGERS AND PREVENT RISKS
WHICH ELECTRICITY MAY CREATE.
Connections are made on the rear panel. All connections are on detachable terminal blocks or connectors. The Zone 2 mixer, Input 1 MIC/LINE switch, ducking controls and assignments and phantom
voltage selector are also provided on the rear panel. The Zone 1 mixer, tone controls, indicators and power button are on the front panel.
INPUT WIRING
Balanced MIC or LINE source connected
using a single-pair shielded audio cable
Balanced LINE signal from phone
PBX or audio transformer
Unbalanced MIC or LINE source connected using
a single-conductor shielded audio cable
Three inputs may be connected. Each input is available on the primary Zone 1 front-panel mixer and on the Zone 2 rear-panel mixer. If used, the paging source is usually connected to Input 1.
INPUTS 2 & 3
INPUT 1
PHANTOM VOLTAGE
If a condenser mic may be connected to INPUT 1, set the phantom voltage ON (switch up).
LEFT
STEREO SOURCE
MONO SOURCE
RIGHT
MIC or LINE Gain
Set the Input Gain to MIC or LINE/TEL according to the input
signal connected.
INPUTS 2 & 3
Connect a mono or stereo standard unbalanced -10 dBV audio
source to INPUTs 2 and/or 3. The two input jacks associated with
each input provide active summing of the left and right channels,
thereby preserving the stereo separation of the audio source.
INPUT 1
Connect a MIC or LINE source. This is normally a paging mic or the line-level paging output from a phone PBX. The line-level
input is transformer balanced (providing galvanic isolation) and may be connected balanced or unbalanced.
PRIORITY PAGING
INPUT DUCKING SELECTOR
Select one or both inputs (2 and/or 3) to be ducked when a paging priority is detected (VOX activated by audio signal on INPUT
1, or MANUAL activation by an external switch. Selected inputs are ducked only in Zone 1 (the primary amplified output). Set
the switch ON (switch up) to duck the input in Zone 1; set the switch OFF to prevent ducking. Inputs are not ducked in Zone 2.
VOX (VOICE-ACTIVATED PRIORITY)
If a paging signal is to automatically “duck” (fade down) other
audio inputs, feed a normal paging signal into INPUT 1 and adjust
the SENSITIVITY trimmer until the LED flashes regularly. Set the
SENSITIVITY trimmer fully CCW to disable the VOX function.
MANUAL PRIORITY
If a swich (such as a momentary paging mic push-to-talk switch) should “duck” (fade down) other audio inputs, connect the switch to the DUCK and Ground terminals.
659 6th Street • Prescott • Arizona • 86301 • USA
www.rdlnet.com
Safety Instructions
Consignes de sécurité
Do not remove the cover or rear panel. This unit contains no user serviceable
parts inside.
N’ôtez pas le couvercle ni le panneau arrière du boîtier. Cet appareil ne contient
aucune pièce remplaçable par l’utilisateur.
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Read these instructions before operating the unit.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water or moisture.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
Only use attachments/accessories specified by the manufacturer.
Unplug this apparatus during lightning storms or when unused for long periods of time.
Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been
damaged in any way, such as if the power-supply or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped.
To completely disconnect this apparatus from the AC mains, disconnect the power supply plug from the
AC receptacle.
WARNING – To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids,
such as vases, are placed on the equipment.
Warning labels may be attached to any surface (including the bottom) of the apparatus.
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Lisez ces instructions avant d’utiliser l’appareil.
Conservez ces instructions.
Respectez toutes les mises en garde.
Suivez toutes les instructions.
N’utilisez pas cet appareil près d’une source liquide ou dans un lieu humide.
Nettoyez-le uniquement avec un chiffon sec.
Ne bloquez pas aucune ouverture de ventilation. Installez l’appareil en suivant les instructions du
fabricant.
Ne l’installez pas à proximité d’une source de chaleur, comme un radiateur, un four ou tout autre
appareil (amplificateurs y compris) qui produisent la chaleur.
Utilisez uniquement les fixations/accessoires agréés par le fabricant.
Déconnectez l’appareil pendant les orages ou lors de périodes d’inutilisation prolongées.
Confiez toutes les réparations à un technicien qualifié. Vous devez faire contrôler cet appareil s’il a été
endommagé de quelque façon que ce soit, comme lorsque l’alimentation ou les fiches sont
endommagés, qu’un liquide ou des objets se sont infiltrés dans l’appareil, qu’il a été exposé
à la pluie ou l’humidité, qu’il a subi un choc ou qu’il ne fonctionne pas normalement.
Pour déconnecter entièrement l’appareil du secteur, déconnectez la fiche de l’alimentation de la prise.
MISE EN GARDE – Pour réduire les risques d’incendie ou d’électrocution, n’exposez pas cet appareil
aux intempéries ou à l’humidité.
N’exposez pas cet appareil à l’humidité ou aux projections liquides. Ne posez pas de récipient rempli de
liquide, tel qu’un vase, sur cet appareil.
Des étiquettes d’avertissement peuvent être attachées à n’importe quelle surface (y compris le fond) de
l’appareil.
The exclamation point within an equilateral triangle is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions in the literature
accompanying the product.
Le point d’exclamation au centre d’un triangle équilatéral prévient l’utilisateur de la
présence d’instructions importantes dans le mode d’emploi concernant la mise en
oeuvre et l’entretien de l’appareil.
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to
alert the user to the presence of uninsulated “dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude to constitute a risk of electric shock to
persons.
L’éclair de foudre fléché au centre d’un triangle équilatéral prévient l’utilisateur
de la présence de courants élevés dans l’appareil, pouvant constituer un risque
d’électrocution en cas de mise en contact avec les composants internes.
Instrucciones de seguridad
Sicherheitsvorkehrungen
No quitar la tapa ni la parte posterior del chasis. Dentro del aparato no hay
piezas susceptibles de ser reparadas por el usuario.
Um die Gefahr eines Stromschlags zu verringern, sollten Sie weder Deckel noch
Rückwand des Geräts entfernen. Im Innern befinden sich keine Teile, die vom
Anwender gewartet werden können.
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Lea estas instrucciones antes de comenzar a usar la unidad.
Conserve estas instrucciones.
Atienda todas las advertencias.
Siga todas las instrucciones.
No use este aparato cerca del agua o en lugares húmedos.
Limpie sólo con un paño seco.
No bloquee ningún orificio de ventilación. Instale de acuerdo con las instrucciones del fabricante.
No lo instale cerca de ninguna fuente de calor, como radiadores, registros de calefacción, estufas u
otros aparatos (incluidos los amplificadores) que produzcan calor.
Use únicamente aditamentos o accesorios especificados por el fabricante.
Desenchufe este aparato durante las tormentas eléctricas o cuando no se use durante períodos
prolongados de tiempo.
Refiera todo el servicio a personal cualificado. Se requiere servicio cuando el aparato se ha dañado de
cualquier forma, como si se dañan el cable de alimentación o la clavija, si se ha vertido un líquido
o han caído objetos al interior del aparato, si el aparato ha estado expuesto a la lluvia o la humedad, no
funciona normalmente o ha caído.
Para desconectar completamente este aparato de la red de CA, desconecte el alimentación eléctrica del
receptáculo de CA.
ADVERTENCIA – Para reducir el riesgo de incendio o descarga eléctrica, no exponga este aparato a la
lluvia o la humedad.
No exponga este equipo a escurrimientos o salpicaduras, y asegúrese de que no se coloquen objetos
llenos de líquido, como jarrones, sobre el equipo.
Las etiquetas de advertencia se pueden sujetar a cualquier superficie (parte inferior incluyendo) del
aparato.
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Lesen Sie diese Anweisungen bevor Sie das Gerät in Betrieb nehmen.
Bewahren Sie diese Anweisungen auf.
Beachten Sie alle Warnhinweise.
Befolgen Sie alle Anweisungen.
Benutzen Sie die Vorrichtung nie in der Nähe von Wasser oder Feuchtigkeit.
Nur mit trockenem Tuch reinigen.
Belüftungsöffnungen nicht blockieren. Den Anweisungen des Herstellers entsprechend installieren.
Installieren Sie die Vorrichtung nicht in der Nähe von Wärmequellen wie Radiatoren, Heizkörpern,
Herden oder anderen Geräten (insbesondere Verstärkern), die Wärme erzeugen.
Verwenden Sie nur vom Hersteller zugelassenes Zubehör.
Ziehen Sie bei Gewittern oder bei längeren Stillstandzeiten den Netzstecker des Geräts.
Überlassen Sie alle Wartungsarbeiten qualifiziertem Personal. Ein Service wird erforderlich, wenn das
Gerät in irgendeiner Weise beschädigt wurde, beispielsweise bei Beschädigung des Netzteils oder des
Netzkabels, wenn Flüssigkeiten über das Gerät vergossen wurden oder Gegenstände in das Gerät
gefallen sind, das Gerät Regen oder Feuchtigkeit ausgesetzt war, nicht ordnungsgemäß funktioniert oder
fallen gelassen wurde.
Ziehen Sie den Netzstecker aus der Steckdose, um das Gerät vollständig vom Wechselstromnetz zu
trennen.
WARNHINWEIS: Um die Gefahr vom Feuer oder Stromschlag zu vermeiden, darf das Gerät nicht Regen
oder Feuchtigkeit ausgesetzt werden.
Lassen Sie nicht zu, dass Flüssigkeiten auf das Gerät tropfen oder gespritzt werden können, und achten
Sie darauf, dass keine mit Wasser gefüllten Gegenstände wie Vasen auf das Gerät gestellt werden.
Warnaufkleber können sich an belieber Stelle (inklusive Unterseite) am Gehause des Apparates
befinden.
El signo de exclamación dentro de un triángulo equilátero alerta al usuario de la existencia
de importantes instrucciones sobre funcionamiento y mantenimiento (asistencia) en el
manual que acompa~na al equipo.
Das Ausrufezeichen im gleichseitigen Dreieck soll den Anwender auf wichtige
Bedienungs- und Wartungsanleitungen aufmerksam machen, die im mitgelieferten
Informationsmaterial näher beschrieben werden.
El símbolo del relámpago con punta de flecha, dentro de un triángulo equilátero, alerta al
usuario de la presencia de un “voltaje peligroso” sin aislar en el interior del producto, que
puede ser de la suficiente magnitud como para constituir un riesgo de descarga eléctrica
para las personas.
Der Blitz mit Pfeilspitze im gleichseitigen Dreieck soll den Anwender vor nichtisolierter
“gefährlicher Spannung” im Geräteinnern warnen. Diese Spannung kann so hoch sein,
dass die Gefahr eines Stromschlags besteht.
REMOTE CONTROL FOR ZONE 1 AMPLIFIER OUTPUT
MASTER VCA REMOTE CTRL
Connect the VCA terminals directly to an RDL remote control. (Examples providing a single volume control location: D SERIES-RLC10K or D SERIES-RLC10KM with pushbutton muting) Other RDL remote controls
are available to provide multiple control locations. Visit rdlnet.com for details. The VCA may be controlled by an external 10 kOhm linear pot or from other equipment control outputs that provide 0 to 10Vdc.
External 10k Pot
(Linear Taper)
CW
CCW
External Control
0 to 10 V
Wiring may be unshielded or single-pair shielded (connect the shield between the ground terminals). Shielded wiring is recommended for installations in
environments where radio frequency emissions may be present.
0 to 10 V
Ground Reference
EXTERNAL MODULES
MODULE MOUNTING AREA
This area is reserved for mounting RDL STICK-ON
or TX-Series modules. The example shows a mixer
module that provides additional inputs to the mixer
amplifier. Other possibilities include equalizers, signal
detectors, crossovers or processors.
MODULE POWER
24 Vdc, 100 mA is available to power external modules.
3 Mic/Line Inputs
ZONE 1 OUTPUT CONNECTIONS
Multiple 25 V speakers
Multiple 70 V speakers
Multiple 100 V speakers
Unplug the power supply and remove the output terminal security cover. Connect constant voltage speakers to a single output voltage tap. Do not connect speakers with dissimilar voltages to multiple
output taps. Total connected load must not exceed 35 W. Upon completion of the output terminal block wiring, re-install the cover over the terminal block prior to plugging in the power supply.
ZONE 2
INPUTS
Adjust for desired
output level
LINE OUTPUT
Transformer isolated
Balanced LINE signal feeds phone PBX
Connect an 8 Ohm speaker or multiple
speakers configured to present an 8 Ohm
load to the amplifier.
The Zone 2 mixer operates from the same 3 inputs as the front-panel Zone 1 mixer. Ducking assignments do not affect the signals in
Zone 2. Each input source should be adjusted to the desired output level. Turn down unused inputs to remove them from the mix. Two
Zone 2 outputs are provided. The 600 Ohm output is transformer isolated (providing galvanic isolation) to drive a phone PBX paging
input or the input of another power amplifier. The 8 Ohm output drives an 8 ohm speaker with up to 2 W RMS.
ADDING ZONES
OPERATION
TONE CONTROLS
Adjust BASS and TREBLE as desired.
POWER BUTTON
Latching pushbutton turns the amplifier
ON or off (STANDBY).
POWER INDICATOR
Glows dimly when unit is in standby (off)
mode; glows bright when amplifier is on.
ADDITIONAL ZONE AMPLIFIERS
Connect the LINE OUTPUT to the line input of one
or multiple additional RDL amplifiers to permit the
Zone 1 mixer to feed other zones. The LINE OUTPUT
is not controlled by the master VCA remote control so
each additional zone may have its own master level
control. The LINE OUTPUT provides “flat” audio without
equalization by the front-panel tone controls. The LINE
OUTPUT may also be used to feed recording equipment or
an audio distribution amplifier.
COMPRESSION INDICATOR
LED flashes when audio compressor is
acting on the amplified audio.
MIXER LEVEL 1 - 3
Adjust each level control for the desired output level. If a master remote control is connected, it will adjust the final
mixer output level feeding the Zone 1 amplifier.
SIGNAL PRESENT 1 - 3 The green LED glows when audio is present at the input. The indication is not affected by the setting of the mixer level control.
RDL• 659 6th Street • Prescott, AZ • USA 86301 • Sales: 800-281-2683 • 928-443-9391 • Tech Support: 800-933-1780 • 928-778-3554 • RDL Europe Sales & Support: (31) 20-6238-983 • www.rdlnet.com
Copyright © 2011 Radio Design Labs, Inc. RDL, Radio Design Labs and the RDL logo are registered trademarks of Radio Design Labs, Inc. Data reflects product at publication time, subject to change without notice. “Made in USA” applies to all HD products except power supplies. Other trademarks, if any, are the property of their respective owners.
891-3405A
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